4992457408 has 14 divisors (see below), whose sum is σ = 9906907796. Its totient is φ = 2496228672.

The previous prime is 4992457381. The next prime is 4992457411. The reversal of 4992457408 is 8047542994.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39003510 + ... + 39003637.

Almost surely, 2^4992457408 is an apocalyptic number.

It is an amenable number.

4992457408 is a deficient number, since it is larger than the sum of its proper divisors (4914450388).

4992457408 is an equidigital number, since it uses as much as digits as its factorization.

4992457408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78007159 (or 78007149 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The square root of 4992457408 is about 70657.3238100623. The cubic root of 4992457408 is about 1709.1156705578.

It can be divided in two parts, 4992 and 457408, that added together give a square (462400 = 680²).

The spelling of 4992457408 in words is "four billion, nine hundred ninety-two million, four hundred fifty-seven thousand, four hundred eight".