1020944925 has 192 divisors, whose sum is σ = 2519838720. Its totient is φ = 391392000.

The previous prime is 1020944921. The next prime is 1020944927. The reversal of 1020944925 is 5294490201.

1020944925 is a `hidden beast` number, since 1 + 0 + 209 + 449 + 2 + 5 = 666.

It is not a de Polignac number, because 1020944925 - 2² = 1020944921 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020944925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020944921) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 674920 + ... + 676430.

It is an arithmetic number, because the mean of its divisors is an integer number (13124160).

Almost surely, 2^1020944925 is an apocalyptic number.

1020944925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020944925 is an abundant number, since it is smaller than the sum of its proper divisors (1498893795).

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

1020944925 is a wasteful number, since it uses less digits than its factorization.

1020944925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1020944925 is about 31952.2287955003. The cubic root of 1020944925 is about 1006.9334577270.

The spelling of 1020944925 in words is "one billion, twenty million, nine hundred forty-four thousand, nine hundred twenty-five".