1025409426 has 16 divisors (see below), whose sum is σ = 2100839328. Its totient is φ = 333466400.

The previous prime is 1025409421. The next prime is 1025409449. The reversal of 1025409426 is 6249045201.

It is not an unprimeable number, because it can be changed into a prime (1025409421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2083920 + ... + 2084411.

It is an arithmetic number, because the mean of its divisors is an integer number (131302458).

Almost surely, 2^1025409426 is an apocalyptic number.

1025409426 is an abundant number, since it is smaller than the sum of its proper divisors (1075429902).

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

1025409426 is a wasteful number, since it uses less digits than its factorization.

1025409426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4168377.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1025409426 is about 32022.0147086344. The cubic root of 1025409426 is about 1008.3990668407.

The spelling of 1025409426 in words is "one billion, twenty-five million, four hundred nine thousand, four hundred twenty-six".