157628 has 12 divisors (see below), whose sum is σ = 278712. Its totient is φ = 78000.

The previous prime is 157627. The next prime is 157637. The reversal of 157628 is 826751.

It is an Ulam number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 157628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503 + ... + 753.

It is an arithmetic number, because the mean of its divisors is an integer number (23226).

2¹⁵⁷⁶²⁸ is an apocalyptic number.

It is an amenable number.

157628 is a deficient number, since it is larger than the sum of its proper divisors (121084).

157628 is a wasteful number, since it uses less digits than its factorization.

157628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 410 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 157628 is about 397.0239287499. The cubic root of 157628 is about 54.0187406375.

It can be divided in two parts, 157 and 628, that multiplied together give a square (98596 = 314²).

The spelling of 157628 in words is "one hundred fifty-seven thousand, six hundred twenty-eight".