425222740 has 12 divisors (see below), whose sum is σ = 892967796. Its totient is φ = 170089088.

The previous prime is 425222723. The next prime is 425222773. The reversal of 425222740 is 47222524.

It can be written as a sum of positive squares in 2 ways, for example, as 89453764 + 335768976 = 9458^2 + 18324^2 .

It is a super-2 number, since 2×425222740² = 361628757226215200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 425222699 and 425222708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10630549 + ... + 10630588.

It is an arithmetic number, because the mean of its divisors is an integer number (74413983).

Almost surely, 2^425222740 is an apocalyptic number.

It is an amenable number.

425222740 is an abundant number, since it is smaller than the sum of its proper divisors (467745056).

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

425222740 is a wasteful number, since it uses less digits than its factorization.

425222740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21261146 (or 21261144 counting only the distinct ones).

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

The square root of 425222740 is about 20620.9296589654. The cubic root of 425222740 is about 751.9786214120.

The spelling of 425222740 in words is "four hundred twenty-five million, two hundred twenty-two thousand, seven hundred forty".