677488440 has 64 divisors (see below), whose sum is σ = 2037728160. Its totient is φ = 180195840.

The previous prime is 677488429. The next prime is 677488451. The reversal of 677488440 is 44884776.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (677488429) and next prime (677488451).

It is a self number, because there is not a number n which added to its sum of digits gives 677488440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40530 + ... + 54750.

Almost surely, 2^677488440 is an apocalyptic number.

677488440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

677488440 is an abundant number, since it is smaller than the sum of its proper divisors (1360239720).

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

677488440 is a wasteful number, since it uses less digits than its factorization.

677488440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14632 (or 14628 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 48.

The square root of 677488440 is about 26028.6081072346. The cubic root of 677488440 is about 878.2819613884.

The spelling of 677488440 in words is "six hundred seventy-seven million, four hundred eighty-eight thousand, four hundred forty".