400341140 has 24 divisors (see below), whose sum is σ = 842575272. Its totient is φ = 159782400.

The previous prime is 400341127. The next prime is 400341167. The reversal of 400341140 is 41143004.

400341140 = T₄₄₁ + T₄₄₂ + ... + T₁₃₅₄.

It can be written as a sum of positive squares in 4 ways, for example, as 108409744 + 291931396 = 10412^2 + 17086^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12761 + ... + 31040.

It is an arithmetic number, because the mean of its divisors is an integer number (35107303).

Almost surely, 2^400341140 is an apocalyptic number.

It is an amenable number.

400341140 is an abundant number, since it is smaller than the sum of its proper divisors (442234132).

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

400341140 is a wasteful number, since it uses less digits than its factorization.

400341140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44267 (or 44265 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 400341140 is about 20008.5266823922. The cubic root of 400341140 is about 737.0157019607.

Adding to 400341140 its reverse (41143004), we get a palindrome (441484144).

The spelling of 400341140 in words is "four hundred million, three hundred forty-one thousand, one hundred forty".