4000389025 has 12 divisors (see below), whose sum is σ = 4967682544. Its totient is φ = 3195666000.

The previous prime is 4000389007. The next prime is 4000389031. The reversal of 4000389025 is 5209830004.

It is not a de Polignac number, because 4000389025 - 2⁷ = 4000388897 is a prime.

It is a super-2 number, since 2×4000389025² = 32006224702680901250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98511 + ... + 133060.

Almost surely, 2^4000389025 is an apocalyptic number.

It is an amenable number.

4000389025 is a deficient number, since it is larger than the sum of its proper divisors (967293519).

4000389025 is a wasteful number, since it uses less digits than its factorization.

4000389025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232272 (or 232267 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 4000389025 is about 63248.6286412599. The cubic root of 4000389025 is about 1587.4525118578.

The spelling of 4000389025 in words is "four billion, three hundred eighty-nine thousand, twenty-five".