400302203240 has 64 divisors (see below), whose sum is σ = 909641136960. Its totient is φ = 158535659520.

The previous prime is 400302203177. The next prime is 400302203291. The reversal of 400302203240 is 42302203004.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1506047 + ... + 1751793.

It is an arithmetic number, because the mean of its divisors is an integer number (14213142765).

Almost surely, 2^400302203240 is an apocalyptic number.

400302203240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400302203240 is an abundant number, since it is smaller than the sum of its proper divisors (509338933720).

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

400302203240 is a wasteful number, since it uses less digits than its factorization.

400302203240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246162 (or 246158 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 400302203240 its reverse (42302203004), we get a palindrome (442604406244).

The spelling of 400302203240 in words is "four hundred billion, three hundred two million, two hundred three thousand, two hundred forty".