423699072 has 64 divisors (see below), whose sum is σ = 1161788160. Its totient is φ = 136673280.

The previous prime is 423699071. The next prime is 423699091. The reversal of 423699072 is 270996324.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×423699072² = 359041807227322368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (423699071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5893 + ... + 29700.

It is an arithmetic number, because the mean of its divisors is an integer number (18152940).

Almost surely, 2^423699072 is an apocalyptic number.

It is an amenable number.

423699072 is an abundant number, since it is smaller than the sum of its proper divisors (738089088).

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

423699072 is a wasteful number, since it uses less digits than its factorization.

423699072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35641 (or 35629 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 423699072 is about 20583.9518071725. The cubic root of 423699072 is about 751.0793774029.

The spelling of 423699072 in words is "four hundred twenty-three million, six hundred ninety-nine thousand, seventy-two".