1425631404 has 24 divisors (see below), whose sum is σ = 3348802800. Its totient is φ = 472020544.

The previous prime is 1425631369. The next prime is 1425631447. The reversal of 1425631404 is 4041365241.

It is a super-2 number, since 2×1425631404² = 4064849800142022432, which contains 22 as substring.

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, 396879 + ... + 400454.

It is an arithmetic number, because the mean of its divisors is an integer number (139533450).

Almost surely, 2^1425631404 is an apocalyptic number.

It is an amenable number.

1425631404 is an abundant number, since it is smaller than the sum of its proper divisors (1923171396).

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

1425631404 is a wasteful number, since it uses less digits than its factorization.

1425631404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797489 (or 797487 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1425631404 is about 37757.5344004346. The cubic root of 1425631404 is about 1125.4747373170.

Adding to 1425631404 its reverse (4041365241), we get a palindrome (5466996645).

The spelling of 1425631404 in words is "one billion, four hundred twenty-five million, six hundred thirty-one thousand, four hundred four".