1420664264 has 8 divisors (see below), whose sum is σ = 2663745510. Its totient is φ = 710332128.

The previous prime is 1420664263. The next prime is 1420664281. The reversal of 1420664264 is 4624660241.

It can be written as a sum of positive squares in only one way, i.e., 1420536100 + 128164 = 37690^2 + 358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1420664261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88791509 + ... + 88791524.

Almost surely, 2^1420664264 is an apocalyptic number.

It is an amenable number.

1420664264 is a deficient number, since it is larger than the sum of its proper divisors (1243081246).

1420664264 is a wasteful number, since it uses less digits than its factorization.

1420664264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177583039 (or 177583035 counting only the distinct ones).

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

The square root of 1420664264 is about 37691.7002004420. The cubic root of 1420664264 is about 1124.1661017682.

The spelling of 1420664264 in words is "one billion, four hundred twenty million, six hundred sixty-four thousand, two hundred sixty-four".