40472238387 has 64 divisors (see below), whose sum is σ = 64691314688. Its totient is φ = 22021632000.

The previous prime is 40472238361. The next prime is 40472238407. The reversal of 40472238387 is 78383227404.

40472238387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40472238387 - 2¹⁹ = 40471714099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40472238187) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11427837 + ... + 11431377.

It is an arithmetic number, because the mean of its divisors is an integer number (1010801792).

Almost surely, 2^40472238387 is an apocalyptic number.

40472238387 is a deficient number, since it is larger than the sum of its proper divisors (24219076301).

40472238387 is a wasteful number, since it uses less digits than its factorization.

40472238387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860.

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 40472238387 in words is "forty billion, four hundred seventy-two million, two hundred thirty-eight thousand, three hundred eighty-seven".