157578740 has 48 divisors (see below), whose sum is σ = 363666240. Its totient is φ = 56878080.

The previous prime is 157578739. The next prime is 157578769. The reversal of 157578740 is 47875751.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 157578691 and 157578700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28004 + ... + 33156.

It is an arithmetic number, because the mean of its divisors is an integer number (7576380).

Almost surely, 2^157578740 is an apocalyptic number.

157578740 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 157578740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181833120).

157578740 is an abundant number, since it is smaller than the sum of its proper divisors (206087500).

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

157578740 is a wasteful number, since it uses less digits than its factorization.

157578740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312 (or 5310 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 44.

The square root of 157578740 is about 12553.0370827143. The cubic root of 157578740 is about 540.1311295632.

The spelling of 157578740 in words is "one hundred fifty-seven million, five hundred seventy-eight thousand, seven hundred forty".