423700632 has 128 divisors (see below), whose sum is σ = 1214059200. Its totient is φ = 138568320.

The previous prime is 423700631. The next prime is 423700637. The reversal of 423700632 is 236007324.

423700632 is a `hidden beast` number, since 4 + 23 + 7 + 0 + 0 + 632 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 423700596 and 423700605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423700631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1067058 + ... + 1067454.

Almost surely, 2^423700632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423700632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607029600).

423700632 is an abundant number, since it is smaller than the sum of its proper divisors (790358568).

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

423700632 is an equidigital number, since it uses as much as digits as its factorization.

423700632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 423700632 is about 20583.9897007359. The cubic root of 423700632 is about 751.0802991911.

Adding to 423700632 its reverse (236007324), we get a palindrome (659707956).

The spelling of 423700632 in words is "four hundred twenty-three million, seven hundred thousand, six hundred thirty-two".