425709408 has 24 divisors (see below), whose sum is σ = 1117487448. Its totient is φ = 141903104.

The previous prime is 425709379. The next prime is 425709413. The reversal of 425709408 is 804907524.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2217141 + ... + 2217332.

It is an arithmetic number, because the mean of its divisors is an integer number (46561977).

Almost surely, 2^425709408 is an apocalyptic number.

425709408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

425709408 is an abundant number, since it is smaller than the sum of its proper divisors (691778040).

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

425709408 is a wasteful number, since it uses less digits than its factorization.

425709408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434486 (or 4434478 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 425709408 is about 20632.7266254366. The cubic root of 425709408 is about 752.2653922191.

The spelling of 425709408 in words is "four hundred twenty-five million, seven hundred nine thousand, four hundred eight".