1993915272 has 16 divisors (see below), whose sum is σ = 4984788240. Its totient is φ = 664638416.

The previous prime is 1993915249. The next prime is 1993915337. The reversal of 1993915272 is 2725193991.

It is a super-2 number, since 2×1993915272² = 7951396223829667968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41539878 + ... + 41539925.

It is an arithmetic number, because the mean of its divisors is an integer number (311549265).

Almost surely, 2^1993915272 is an apocalyptic number.

1993915272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1993915272 is an abundant number, since it is smaller than the sum of its proper divisors (2990872968).

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

1993915272 is a wasteful number, since it uses less digits than its factorization.

1993915272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83079812 (or 83079808 counting only the distinct ones).

The product of its digits is 306180, while the sum is 48.

The square root of 1993915272 is about 44653.2784014791. The cubic root of 1993915272 is about 1258.6420391295.

The spelling of 1993915272 in words is "one billion, nine hundred ninety-three million, nine hundred fifteen thousand, two hundred seventy-two".