15071980 has 48 divisors (see below), whose sum is σ = 39465216. Its totient is φ = 4697280.

The previous prime is 15071977. The next prime is 15072011. The reversal of 15071980 is 8917051.

15071980 = T₁₇₈ + T₁₇₉ + ... + T₄₅₇.

It is a super-2 number, since 2×15071980² = 454329162240800, 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, 3354 + ... + 6433.

It is an arithmetic number, because the mean of its divisors is an integer number (822192).

Almost surely, 2^15071980 is an apocalyptic number.

15071980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15071980 is an abundant number, since it is smaller than the sum of its proper divisors (24393236).

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

15071980 is a wasteful number, since it uses less digits than its factorization.

15071980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9814 (or 9812 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 15071980 is about 3882.2648029211. The cubic root of 15071980 is about 247.0150624328.

The spelling of 15071980 in words is "fifteen million, seventy-one thousand, nine hundred eighty".