1423613664 has 96 divisors (see below), whose sum is σ = 4529710080. Its totient is φ = 431395200.

The previous prime is 1423613657. The next prime is 1423613699. The reversal of 1423613664 is 4663163241.

1423613664 is a `hidden beast` number, since 14 + 23 + 613 + 6 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65392 + ... + 84399.

It is an arithmetic number, because the mean of its divisors is an integer number (47184480).

Almost surely, 2^1423613664 is an apocalyptic number.

It is an amenable number.

1423613664 is an abundant number, since it is smaller than the sum of its proper divisors (3106096416).

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

1423613664 is a wasteful number, since it uses less digits than its factorization.

1423613664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149821 (or 149807 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 1423613664 is about 37730.8052392206. The cubic root of 1423613664 is about 1124.9435136083.

The spelling of 1423613664 in words is "one billion, four hundred twenty-three million, six hundred thirteen thousand, six hundred sixty-four".