1393632464 has 20 divisors (see below), whose sum is σ = 3085900704. Its totient is φ = 597271008.

The previous prime is 1393632437. The next prime is 1393632473. The reversal of 1393632464 is 4642363931.

It is a super-2 number, since 2×1393632464² = 3884422889429422592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6221462 + ... + 6221685.

Almost surely, 2^1393632464 is an apocalyptic number.

1393632464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1393632464 is an abundant number, since it is smaller than the sum of its proper divisors (1692268240).

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

1393632464 is a wasteful number, since it uses less digits than its factorization.

1393632464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443162 (or 12443156 counting only the distinct ones).

The product of its digits is 279936, while the sum is 41.

The square root of 1393632464 is about 37331.3871159377. The cubic root of 1393632464 is about 1116.9903423282.

The spelling of 1393632464 in words is "one billion, three hundred ninety-three million, six hundred thirty-two thousand, four hundred sixty-four".