157689324 has 144 divisors (see below), whose sum is σ = 449100288. Its totient is φ = 46341504.

The previous prime is 157689313. The next prime is 157689347. The reversal of 157689324 is 423986751.

157689324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 157689324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1473679 + ... + 1473785.

It is an arithmetic number, because the mean of its divisors is an integer number (3118752).

Almost surely, 2^157689324 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 157689324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224550144).

157689324 is an abundant number, since it is smaller than the sum of its proper divisors (291410964).

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

157689324 is a wasteful number, since it uses less digits than its factorization.

157689324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 239 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 157689324 is about 12557.4409813465. The cubic root of 157689324 is about 540.2574492560.

The spelling of 157689324 in words is "one hundred fifty-seven million, six hundred eighty-nine thousand, three hundred twenty-four".