157331430 has 128 divisors (see below), whose sum is σ = 449141760. Its totient is φ = 39052800.

The previous prime is 157331429. The next prime is 157331443. The reversal of 157331430 is 34133751.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 157331394 and 157331403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 692977 + ... + 693203.

It is an arithmetic number, because the mean of its divisors is an integer number (3508920).

Almost surely, 2^157331430 is an apocalyptic number.

157331430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 157331430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224570880).

157331430 is an abundant number, since it is smaller than the sum of its proper divisors (291810330).

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

157331430 is a wasteful number, since it uses less digits than its factorization.

157331430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 157331430 is about 12543.1826104861. The cubic root of 157331430 is about 539.8484142418.

The spelling of 157331430 in words is "one hundred fifty-seven million, three hundred thirty-one thousand, four hundred thirty".