157443428 has 6 divisors (see below), whose sum is σ = 275526006. Its totient is φ = 78721712.

The previous prime is 157443359. The next prime is 157443437. The reversal of 157443428 is 824344751.

It can be written as a sum of positive squares in only one way, i.e., 155950144 + 1493284 = 12488^2 + 1222^2 .

It is a junction number, because it is equal to n+sod(n) for n = 157443391 and 157443400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19680425 + ... + 19680432.

It is an arithmetic number, because the mean of its divisors is an integer number (45921001).

Almost surely, 2^157443428 is an apocalyptic number.

It is an amenable number.

157443428 is a deficient number, since it is larger than the sum of its proper divisors (118082578).

157443428 is a wasteful number, since it uses less digits than its factorization.

157443428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39360861 (or 39360859 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 157443428 is about 12547.6463131537. The cubic root of 157443428 is about 539.9764827435.

The spelling of 157443428 in words is "one hundred fifty-seven million, four hundred forty-three thousand, four hundred twenty-eight".