425404720 has 40 divisors (see below), whose sum is σ = 1065150576. Its totient is φ = 157072128.

The previous prime is 425404717. The next prime is 425404739. The reversal of 425404720 is 27404524.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203482 + ... + 205561.

Almost surely, 2^425404720 is an apocalyptic number.

425404720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425404720 is an abundant number, since it is smaller than the sum of its proper divisors (639745856).

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

425404720 is a wasteful number, since it uses less digits than its factorization.

425404720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409069 (or 409063 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 425404720 is about 20625.3416941393. The cubic root of 425404720 is about 752.0858793576.

The spelling of 425404720 in words is "four hundred twenty-five million, four hundred four thousand, seven hundred twenty".