1025645422 has 16 divisors (see below), whose sum is σ = 1658941200. Its totient is φ = 473981760.

The previous prime is 1025645393. The next prime is 1025645437. The reversal of 1025645422 is 2245465201.

It is a congruent 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, 327597 + ... + 330712.

It is an arithmetic number, because the mean of its divisors is an integer number (103683825).

Almost surely, 2^1025645422 is an apocalyptic number.

1025645422 is a deficient number, since it is larger than the sum of its proper divisors (633295778).

1025645422 is a wasteful number, since it uses less digits than its factorization.

1025645422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658371.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 1025645422 is about 32025.6993990764. The cubic root of 1025645422 is about 1008.4764212729.

The spelling of 1025645422 in words is "one billion, twenty-five million, six hundred forty-five thousand, four hundred twenty-two".