400302205040 has 80 divisors (see below), whose sum is σ = 933267561696. Its totient is φ = 159680102400.

The previous prime is 400302204997. The next prime is 400302205099. The reversal of 400302205040 is 40502203004.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

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, 73568720 + ... + 73574160.

Almost surely, 2^400302205040 is an apocalyptic number.

400302205040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400302205040 is an abundant number, since it is smaller than the sum of its proper divisors (532965356656).

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

400302205040 is a wasteful number, since it uses less digits than its factorization.

400302205040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7818 (or 7812 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 400302205040 its reverse (40502203004), we get a palindrome (440804408044).

The spelling of 400302205040 in words is "four hundred billion, three hundred two million, two hundred five thousand, forty".