400149950 has 24 divisors (see below), whose sum is σ = 750876048. Its totient is φ = 158641280.

The previous prime is 400149943. The next prime is 400149979. The reversal of 400149950 is 59941004.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29762 + ... + 41061.

It is an arithmetic number, because the mean of its divisors is an integer number (31286502).

Almost surely, 2^400149950 is an apocalyptic number.

400149950 is a deficient number, since it is larger than the sum of its proper divisors (350726098).

400149950 is a wasteful number, since it uses less digits than its factorization.

400149950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70948 (or 70943 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 400149950 is about 20003.7483987377. The cubic root of 400149950 is about 736.8983583128.

The spelling of 400149950 in words is "four hundred million, one hundred forty-nine thousand, nine hundred fifty".