401644150 has 12 divisors (see below), whose sum is σ = 747058212. Its totient is φ = 160657640.

The previous prime is 401644141. The next prime is 401644157. The reversal of 401644150 is 51446104.

It is a super-2 number, since 2×401644150² = 322636046458445000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401644157) 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 5 ways as a sum of consecutive naturals, for example, 4016392 + ... + 4016491.

It is an arithmetic number, because the mean of its divisors is an integer number (62254851).

Almost surely, 2^401644150 is an apocalyptic number.

401644150 is a deficient number, since it is larger than the sum of its proper divisors (345414062).

401644150 is a wasteful number, since it uses less digits than its factorization.

401644150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8032895 (or 8032890 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 401644150 is about 20041.0615986280. The cubic root of 401644150 is about 737.8144364453.

The spelling of 401644150 in words is "four hundred one million, six hundred forty-four thousand, one hundred fifty".