40002302320 has 40 divisors (see below), whose sum is σ = 93190347936. Its totient is φ = 15969093888.

The previous prime is 40002302311. The next prime is 40002302341. The reversal of 40002302320 is 2320320004.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 40002302294 and 40002302303.

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, 456807 + ... + 537286.

Almost surely, 2^40002302320 is an apocalyptic number.

40002302320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40002302320 is an abundant number, since it is smaller than the sum of its proper divisors (53188045616).

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

40002302320 is a wasteful number, since it uses less digits than its factorization.

40002302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994609 (or 994603 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 40002302320 its reverse (2320320004), we get a palindrome (42322622324).

The spelling of 40002302320 in words is "forty billion, two million, three hundred two thousand, three hundred twenty".