426677976 has 64 divisors (see below), whose sum is σ = 1202947200. Its totient is φ = 140098464.

The previous prime is 426677971. The next prime is 426678001. The reversal of 426677976 is 679776624.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426677971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270 + ... + 29213.

It is an arithmetic number, because the mean of its divisors is an integer number (18796050).

Almost surely, 2^426677976 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 426677976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601473600).

426677976 is an abundant number, since it is smaller than the sum of its proper divisors (776269224).

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

426677976 is a wasteful number, since it uses less digits than its factorization.

426677976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29565 (or 29555 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The square root of 426677976 is about 20656.1849333317. The cubic root of 426677976 is about 752.8354746024.

The spelling of 426677976 in words is "four hundred twenty-six million, six hundred seventy-seven thousand, nine hundred seventy-six".