400635141 has 8 divisors (see below), whose sum is σ = 565602624. Its totient is φ = 251378880.

The previous prime is 400635139. The next prime is 400635161. The reversal of 400635141 is 141536004.

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

It is not a de Polignac number, because 400635141 - 2¹ = 400635139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400635101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3927745 + ... + 3927846.

It is an arithmetic number, because the mean of its divisors is an integer number (70700328).

Almost surely, 2^400635141 is an apocalyptic number.

It is an amenable number.

400635141 is a deficient number, since it is larger than the sum of its proper divisors (164967483).

400635141 is a wasteful number, since it uses less digits than its factorization.

400635141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7855611.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 400635141 is about 20015.8722268104. The cubic root of 400635141 is about 737.1960734081.

The spelling of 400635141 in words is "four hundred million, six hundred thirty-five thousand, one hundred forty-one".