514993988 has 24 divisors (see below), whose sum is σ = 956755800. Its totient is φ = 241714688.

The previous prime is 514993987. The next prime is 514993991. The reversal of 514993988 is 889399415.

It can be written as a sum of positive squares in 4 ways, for example, as 55234624 + 459759364 = 7432^2 + 21442^2 .

It is a super-2 number, since 2×514993988² = 530437615352288288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (514993987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16718 + ... + 36186.

It is an arithmetic number, because the mean of its divisors is an integer number (39864825).

Almost surely, 2^514993988 is an apocalyptic number.

It is an amenable number.

514993988 is a deficient number, since it is larger than the sum of its proper divisors (441761812).

514993988 is a wasteful number, since it uses less digits than its factorization.

514993988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19879 (or 19877 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 56.

The square root of 514993988 is about 22693.4789752475. The cubic root of 514993988 is about 801.5563390475.

The spelling of 514993988 in words is "five hundred fourteen million, nine hundred ninety-three thousand, nine hundred eighty-eight".