1438699564 has 24 divisors (see below), whose sum is σ = 2588320448. Its totient is φ = 699217920.

The previous prime is 1438699531. The next prime is 1438699583. The reversal of 1438699564 is 4659968341.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166429 + ... + 174859.

Almost surely, 2^1438699564 is an apocalyptic number.

It is an amenable number.

1438699564 is a deficient number, since it is larger than the sum of its proper divisors (1149620884).

1438699564 is a wasteful number, since it uses less digits than its factorization.

1438699564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9625 (or 9623 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 55.

The square root of 1438699564 is about 37930.1933029612. The cubic root of 1438699564 is about 1128.9031997411.

The spelling of 1438699564 in words is "one billion, four hundred thirty-eight million, six hundred ninety-nine thousand, five hundred sixty-four".