3925249299 has 18 divisors (see below), whose sum is σ = 5927042940. Its totient is φ = 2503054488.

The previous prime is 3925249297. The next prime is 3925249309. The reversal of 3925249299 is 9929425293.

It is a happy number.

3925249299 is a `hidden beast` number, since 3 + 92 + 524 + 9 + 29 + 9 = 666.

It is not a de Polignac number, because 3925249299 - 2¹ = 3925249297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3925249297) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 407469 + ... + 416990.

Almost surely, 2^3925249299 is an apocalyptic number.

3925249299 is a deficient number, since it is larger than the sum of its proper divisors (2001793641).

3925249299 is a wasteful number, since it uses less digits than its factorization.

3925249299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824511 (or 824485 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 3925249299 is about 62651.8100217384. The cubic root of 3925249299 is about 1577.4505296324.

The spelling of 3925249299 in words is "three billion, nine hundred twenty-five million, two hundred forty-nine thousand, two hundred ninety-nine".