425428812 has 36 divisors (see below), whose sum is σ = 1104457536. Its totient is φ = 137976480.

The previous prime is 425428807. The next prime is 425428813. The reversal of 425428812 is 218824524.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (425428813) 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, 158364 + ... + 161027.

It is an arithmetic number, because the mean of its divisors is an integer number (30679376).

Almost surely, 2^425428812 is an apocalyptic number.

It is an amenable number.

425428812 is an abundant number, since it is smaller than the sum of its proper divisors (679028724).

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

425428812 is a wasteful number, since it uses less digits than its factorization.

425428812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319438 (or 319433 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 425428812 is about 20625.9257246796. The cubic root of 425428812 is about 752.1000767483.

The spelling of 425428812 in words is "four hundred twenty-five million, four hundred twenty-eight thousand, eight hundred twelve".