157373840 has 60 divisors (see below), whose sum is σ = 395055444. Its totient is φ = 57957888.

The previous prime is 157373831. The next prime is 157373849. The reversal of 157373840 is 48373751.

It is an interprime number because it is at equal distance from previous prime (157373831) and next prime (157373849).

It can be written as a sum of positive squares in 6 ways, for example, as 42198016 + 115175824 = 6496^2 + 10732^2 .

It is a junction number, because it is equal to n+sod(n) for n = 157373794 and 157373803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157373849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404366 + ... + 404754.

Almost surely, 2^157373840 is an apocalyptic number.

157373840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157373840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197527722).

157373840 is an abundant number, since it is smaller than the sum of its proper divisors (237681604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157373840 is an equidigital number, since it uses as much as digits as its factorization.

157373840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 157373840 is about 12544.8730563525. The cubic root of 157373840 is about 539.8969167658.

The spelling of 157373840 in words is "one hundred fifty-seven million, three hundred seventy-three thousand, eight hundred forty".