426209625 has 48 divisors (see below), whose sum is σ = 770923920. Its totient is φ = 226540800.

The previous prime is 426209621. The next prime is 426209633. The reversal of 426209625 is 526902624.

426209625 is a `hidden beast` number, since 4 + 2 + 6 + 20 + 9 + 625 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 53758224 + 372451401 = 7332^2 + 19299^2 .

It is not a de Polignac number, because 426209625 - 2² = 426209621 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 426209625.

It is not an unprimeable number, because it can be changed into a prime (426209621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 513711 + ... + 514539.

It is an arithmetic number, because the mean of its divisors is an integer number (16060915).

Almost surely, 2^426209625 is an apocalyptic number.

426209625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

426209625 is a deficient number, since it is larger than the sum of its proper divisors (344714295).

426209625 is a wasteful number, since it uses less digits than its factorization.

426209625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 426209625 is about 20644.8449982072. The cubic root of 426209625 is about 752.5599191442.

The spelling of 426209625 in words is "four hundred twenty-six million, two hundred nine thousand, six hundred twenty-five".