400100140 has 48 divisors (see below), whose sum is σ = 938970144. Its totient is φ = 141939200.

The previous prime is 400100033. The next prime is 400100171. The reversal of 400100140 is 41001004.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13159 + ... + 31198.

It is an arithmetic number, because the mean of its divisors is an integer number (19561878).

Almost surely, 2^400100140 is an apocalyptic number.

It is an amenable number.

400100140 is an abundant number, since it is smaller than the sum of its proper divisors (538870004).

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

400100140 is a wasteful number, since it uses less digits than its factorization.

400100140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44418 (or 44416 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 400100140 is about 20002.5033433318. The cubic root of 400100140 is about 736.8677810835.

Adding to 400100140 its reverse (41001004), we get a palindrome (441101144).

The spelling of 400100140 in words is "four hundred million, one hundred thousand, one hundred forty".