425450420 has 24 divisors (see below), whose sum is σ = 917594664. Its totient is φ = 165580416.

The previous prime is 425450419. The next prime is 425450477. The reversal of 425450420 is 24054524.

It can be written as a sum of positive squares in 4 ways, for example, as 133587364 + 291863056 = 11558^2 + 17084^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 425450420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286727 + ... + 288206.

It is an arithmetic number, because the mean of its divisors is an integer number (38233111).

Almost surely, 2^425450420 is an apocalyptic number.

It is an amenable number.

425450420 is an abundant number, since it is smaller than the sum of its proper divisors (492144244).

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

425450420 is a wasteful number, since it uses less digits than its factorization.

425450420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574979 (or 574977 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 425450420 is about 20626.4495248213. The cubic root of 425450420 is about 752.1128098643.

It can be divided in two parts, 4254504 and 20, that added together give a palindrome (4254524).

The spelling of 425450420 in words is "four hundred twenty-five million, four hundred fifty thousand, four hundred twenty".