40402155232 has 48 divisors (see below), whose sum is σ = 79989299712. Its totient is φ = 20087625600.

The previous prime is 40402155197. The next prime is 40402155247. The reversal of 40402155232 is 23255120404.

40402155232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40402155232.

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, 7497243 + ... + 7502629.

It is an arithmetic number, because the mean of its divisors is an integer number (1666443744).

Almost surely, 2^40402155232 is an apocalyptic number.

It is an amenable number.

40402155232 is a deficient number, since it is larger than the sum of its proper divisors (39587144480).

40402155232 is a wasteful number, since it uses less digits than its factorization.

40402155232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6671 (or 6663 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 40402155232 its reverse (23255120404), we get a palindrome (63657275636).

The spelling of 40402155232 in words is "forty billion, four hundred two million, one hundred fifty-five thousand, two hundred thirty-two".