2687238432 has 36 divisors (see below), whose sum is σ = 7641835110. Its totient is φ = 895746048.

The previous prime is 2687238409. The next prime is 2687238469. The reversal of 2687238432 is 2348327862.

2687238432 is a `hidden beast` number, since 268 + 7 + 2 + 384 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2126685456 + 560552976 = 46116^2 + 23676^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4665057 + ... + 4665632.

Almost surely, 2^2687238432 is an apocalyptic number.

It is an amenable number.

2687238432 is an abundant number, since it is smaller than the sum of its proper divisors (4954596678).

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

2687238432 is a wasteful number, since it uses less digits than its factorization.

2687238432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9330705 (or 9330694 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 2687238432 is about 51838.5805361219. The cubic root of 2687238432 is about 1390.2793345069.

The spelling of 2687238432 in words is "two billion, six hundred eighty-seven million, two hundred thirty-eight thousand, four hundred thirty-two".