1517023428 has 48 divisors (see below), whose sum is σ = 3563280000. Its totient is φ = 502322688.

The previous prime is 1517023393. The next prime is 1517023483. The reversal of 1517023428 is 8243207151.

1517023428 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1517023428² = 4602720162201742368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1502988 + ... + 1503996.

It is an arithmetic number, because the mean of its divisors is an integer number (74235000).

Almost surely, 2^1517023428 is an apocalyptic number.

It is an amenable number.

1517023428 is an abundant number, since it is smaller than the sum of its proper divisors (2046256572).

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

1517023428 is a wasteful number, since it uses less digits than its factorization.

1517023428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1517023428 is about 38948.9849418441. The cubic root of 1517023428 is about 1149.0283987615.

The spelling of 1517023428 in words is "one billion, five hundred seventeen million, twenty-three thousand, four hundred twenty-eight".