1537428628 has 24 divisors (see below), whose sum is σ = 2748435200. Its totient is φ = 752289120.

The previous prime is 1537428589. The next prime is 1537428647. The reversal of 1537428628 is 8268247351.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32725 + ... + 64387.

Almost surely, 2^1537428628 is an apocalyptic number.

It is an amenable number.

1537428628 is a deficient number, since it is larger than the sum of its proper divisors (1211006572).

1537428628 is a wasteful number, since it uses less digits than its factorization.

1537428628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31927 (or 31925 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 1537428628 is about 39210.0577403298. The cubic root of 1537428628 is about 1154.1572603513.

The spelling of 1537428628 in words is "one billion, five hundred thirty-seven million, four hundred twenty-eight thousand, six hundred twenty-eight".