425344890 has 16 divisors (see below), whose sum is σ = 1020827808. Its totient is φ = 113425296.

The previous prime is 425344889. The next prime is 425344919. The reversal of 425344890 is 98443524.

It is a super-2 number, since 2×425344890² = 361836550898224200, which contains 22 as substring.

It is a Curzon 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, 7089052 + ... + 7089111.

It is an arithmetic number, because the mean of its divisors is an integer number (63801738).

Almost surely, 2^425344890 is an apocalyptic number.

425344890 is an abundant number, since it is smaller than the sum of its proper divisors (595482918).

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

425344890 is a wasteful number, since it uses less digits than its factorization.

425344890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14178173.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 425344890 is about 20623.8912429250. The cubic root of 425344890 is about 752.0506192820.

The spelling of 425344890 in words is "four hundred twenty-five million, three hundred forty-four thousand, eight hundred ninety".