423409976 has 48 divisors (see below), whose sum is σ = 902777400. Its totient is φ = 185810240.

The previous prime is 423409969. The next prime is 423410011. The reversal of 423409976 is 679904324.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20531 + ... + 35613.

Almost surely, 2^423409976 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 423409976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451388700).

423409976 is an abundant number, since it is smaller than the sum of its proper divisors (479367424).

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

423409976 is a wasteful number, since it uses less digits than its factorization.

423409976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15140 (or 15125 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 423409976 is about 20576.9282450029. The cubic root of 423409976 is about 750.9085144317.

The spelling of 423409976 in words is "four hundred twenty-three million, four hundred nine thousand, nine hundred seventy-six".