1420664624 has 20 divisors (see below), whose sum is σ = 2797663200. Its totient is φ = 698687040.

The previous prime is 1420664587. The next prime is 1420664627. The reversal of 1420664624 is 4264660241.

It is a super-2 number, since 2×1420664624² = 4036575947770122752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1420664627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726824 + ... + 728775.

It is an arithmetic number, because the mean of its divisors is an integer number (139883160).

Almost surely, 2^1420664624 is an apocalyptic number.

It is an amenable number.

1420664624 is a deficient number, since it is larger than the sum of its proper divisors (1376998576).

1420664624 is a wasteful number, since it uses less digits than its factorization.

1420664624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455668 (or 1455662 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 1420664624 is about 37691.7049760289. The cubic root of 1420664624 is about 1124.1661967238.

The spelling of 1420664624 in words is "one billion, four hundred twenty million, six hundred sixty-four thousand, six hundred twenty-four".