423011772 has 36 divisors (see below), whose sum is σ = 1070605536. Its totient is φ = 140829120.

The previous prime is 423011753. The next prime is 423011773. The reversal of 423011772 is 277110324.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423011773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23997 + ... + 37707.

Almost surely, 2^423011772 is an apocalyptic number.

423011772 is the 10284-th decagonal number.

It is an amenable number.

423011772 is an abundant number, since it is smaller than the sum of its proper divisors (647593764).

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

423011772 is a wasteful number, since it uses less digits than its factorization.

423011772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14578 (or 14573 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 423011772 is about 20567.2499863253. The cubic root of 423011772 is about 750.6730385116.

The spelling of 423011772 in words is "four hundred twenty-three million, eleven thousand, seven hundred seventy-two".