1399470824 has 16 divisors (see below), whose sum is σ = 2631163200. Its totient is φ = 697827312.

The previous prime is 1399470817. The next prime is 1399470833. The reversal of 1399470824 is 4280749931.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235394 + ... + 241265.

It is an arithmetic number, because the mean of its divisors is an integer number (164447700).

Almost surely, 2^1399470824 is an apocalyptic number.

It is an amenable number.

1399470824 is a deficient number, since it is larger than the sum of its proper divisors (1231692376).

1399470824 is a wasteful number, since it uses less digits than its factorization.

1399470824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477032 (or 477028 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 1399470824 is about 37409.5017876475. The cubic root of 1399470824 is about 1118.5479759048.

The spelling of 1399470824 in words is "one billion, three hundred ninety-nine million, four hundred seventy thousand, eight hundred twenty-four".