425454440 has 32 divisors (see below), whose sum is σ = 959445000. Its totient is φ = 169795584.

The previous prime is 425454413. The next prime is 425454493. The reversal of 425454440 is 44454524.

It can be written as a sum of positive squares in 4 ways, for example, as 239568484 + 185885956 = 15478^2 + 13634^2 .

It is a super-2 number, since 2×425454440² = 362022961031427200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 425454397 and 425454406.

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 7 ways as a sum of consecutive naturals, for example, 6116 + ... + 29804.

Almost surely, 2^425454440 is an apocalyptic number.

425454440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425454440 is an abundant number, since it is smaller than the sum of its proper divisors (533990560).

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

425454440 is a wasteful number, since it uses less digits than its factorization.

425454440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24149 (or 24145 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

The square root of 425454440 is about 20626.5469722879. The cubic root of 425454440 is about 752.1151787138.

The spelling of 425454440 in words is "four hundred twenty-five million, four hundred fifty-four thousand, four hundred forty".