400141532 has 24 divisors (see below), whose sum is σ = 821914464. Its totient is φ = 166853952.

The previous prime is 400141523. The next prime is 400141537. The reversal of 400141532 is 235141004.

It is a super-2 number, since 2×400141532² = 320226491262614048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400141537) 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, 192083 + ... + 194154.

It is an arithmetic number, because the mean of its divisors is an integer number (34246436).

Almost surely, 2^400141532 is an apocalyptic number.

It is an amenable number.

400141532 is an abundant number, since it is smaller than the sum of its proper divisors (421772932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400141532 is a wasteful number, since it uses less digits than its factorization.

400141532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386285 (or 386283 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 400141532 is about 20003.5379870662. The cubic root of 400141532 is about 736.8931908717.

Adding to 400141532 its reverse (235141004), we get a palindrome (635282536).

The spelling of 400141532 in words is "four hundred million, one hundred forty-one thousand, five hundred thirty-two".