40305423372 has 12 divisors (see below), whose sum is σ = 94045987896. Its totient is φ = 13435141120.

The previous prime is 40305423359. The next prime is 40305423383. The reversal of 40305423372 is 27332450304.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679392629 + ... + 1679392652.

It is an arithmetic number, because the mean of its divisors is an integer number (7837165658).

Almost surely, 2^40305423372 is an apocalyptic number.

It is an amenable number.

40305423372 is an abundant number, since it is smaller than the sum of its proper divisors (53740564524).

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

40305423372 is a wasteful number, since it uses less digits than its factorization.

40305423372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358785288 (or 3358785286 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 33.

Adding to 40305423372 its reverse (27332450304), we get a palindrome (67637873676).

It can be divided in two parts, 403054 and 23372, that added together give a triangular number (426426 = T₉₂₃).

The spelling of 40305423372 in words is "forty billion, three hundred five million, four hundred twenty-three thousand, three hundred seventy-two".