400098240 has 84 divisors (see below), whose sum is σ = 1376181144. Its totient is φ = 106692096.

The previous prime is 400098229. The next prime is 400098253. The reversal of 400098240 is 42890004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66582 + ... + 72341.

Almost surely, 2^400098240 is an apocalyptic number.

400098240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400098240 is an abundant number, since it is smaller than the sum of its proper divisors (976082904).

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

400098240 is a wasteful number, since it uses less digits than its factorization.

400098240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138946 (or 138933 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 400098240 is about 20002.4558492201. The cubic root of 400098240 is about 736.8666146663.

The spelling of 400098240 in words is "four hundred million, ninety-eight thousand, two hundred forty".