400140441350 has 48 divisors (see below), whose sum is σ = 804952354752. Its totient is φ = 147110012160.

The previous prime is 400140441347. The next prime is 400140441367. The reversal of 400140441350 is 53144041004.

It is a happy number.

It is a super-2 number, since 2×400140441350² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1169582 + ... + 1472481.

It is an arithmetic number, because the mean of its divisors is an integer number (16769840724).

Almost surely, 2^400140441350 is an apocalyptic number.

400140441350 is an abundant number, since it is smaller than the sum of its proper divisors (404811913402).

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

400140441350 is a wasteful number, since it uses less digits than its factorization.

400140441350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642321 (or 2642316 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 400140441350 its reverse (53144041004), we get a palindrome (453284482354).

The spelling of 400140441350 in words is "four hundred billion, one hundred forty million, four hundred forty-one thousand, three hundred fifty".