400149038 has 8 divisors (see below), whose sum is σ = 600448032. Its totient is φ = 199999696.

The previous prime is 400149037. The next prime is 400149041. The reversal of 400149038 is 830941004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×400149038² = 320238505224650888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400149038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400149037) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 30470 + ... + 41577.

It is an arithmetic number, because the mean of its divisors is an integer number (75056004).

Almost surely, 2^400149038 is an apocalyptic number.

400149038 is a deficient number, since it is larger than the sum of its proper divisors (200298994).

400149038 is a wasteful number, since it uses less digits than its factorization.

400149038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74826.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 400149038 is about 20003.7256029971. The cubic root of 400149038 is about 736.8977984794.

The spelling of 400149038 in words is "four hundred million, one hundred forty-nine thousand, thirty-eight".