40073020372 has 48 divisors (see below), whose sum is σ = 89081741952. Its totient is φ = 15318276480.

The previous prime is 40073020369. The next prime is 40073020397. The reversal of 40073020372 is 27302037004.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 40073020372.

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, 1211103 + ... + 1243750.

It is an arithmetic number, because the mean of its divisors is an integer number (1855869624).

Almost surely, 2^40073020372 is an apocalyptic number.

It is an amenable number.

40073020372 is an abundant number, since it is smaller than the sum of its proper divisors (49008721580).

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

40073020372 is a wasteful number, since it uses less digits than its factorization.

40073020372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454928 (or 2454926 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 28.

Adding to 40073020372 its reverse (27302037004), we get a palindrome (67375057376).

The spelling of 40073020372 in words is "forty billion, seventy-three million, twenty thousand, three hundred seventy-two".