157430430 has 72 divisors (see below), whose sum is σ = 416361816. Its totient is φ = 41270880.

The previous prime is 157430419. The next prime is 157430437. The reversal of 157430430 is 34034751.

157430430 = 481² + 482² + ... + 835².

It is a junction number, because it is equal to n+sod(n) for n = 157430394 and 157430403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157430437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 453517 + ... + 453863.

It is an arithmetic number, because the mean of its divisors is an integer number (5782803).

Almost surely, 2^157430430 is an apocalyptic number.

157430430 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 157430430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208180908).

157430430 is an abundant number, since it is smaller than the sum of its proper divisors (258931386).

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

157430430 is a wasteful number, since it uses less digits than its factorization.

157430430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 157430430 is about 12547.1283567197. The cubic root of 157430430 is about 539.9616227870.

The spelling of 157430430 in words is "one hundred fifty-seven million, four hundred thirty thousand, four hundred thirty".