423996956 has 12 divisors (see below), whose sum is σ = 745264968. Its totient is φ = 211064112.

The previous prime is 423996953. The next prime is 423996961. The reversal of 423996956 is 659699324.

It is a junction number, because it is equal to n+sod(n) for n = 423996898 and 423996907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423996953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232571 + ... + 234386.

It is an arithmetic number, because the mean of its divisors is an integer number (62105414).

Almost surely, 2^423996956 is an apocalyptic number.

It is an amenable number.

423996956 is a deficient number, since it is larger than the sum of its proper divisors (321268012).

423996956 is a wasteful number, since it uses less digits than its factorization.

423996956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467188 (or 467186 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 53.

The square root of 423996956 is about 20591.1863669872. The cubic root of 423996956 is about 751.2553530201.

The spelling of 423996956 in words is "four hundred twenty-three million, nine hundred ninety-six thousand, nine hundred fifty-six".