157189344 has 192 divisors, whose sum is σ = 487710720. Its totient is φ = 43868160.

The previous prime is 157189321. The next prime is 157189349. The reversal of 157189344 is 443981751.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 157189296 and 157189305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157189349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 657577 + ... + 657815.

It is an arithmetic number, because the mean of its divisors is an integer number (2540160).

Almost surely, 2^157189344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157189344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243855360).

157189344 is an abundant number, since it is smaller than the sum of its proper divisors (330521376).

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

157189344 is a wasteful number, since it uses less digits than its factorization.

157189344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 305 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 157189344 is about 12537.5174576150. The cubic root of 157189344 is about 539.6858529445.

The spelling of 157189344 in words is "one hundred fifty-seven million, one hundred eighty-nine thousand, three hundred forty-four".