40017550938 has 32 divisors (see below), whose sum is σ = 82889256960. Its totient is φ = 12871486320.

The previous prime is 40017550931. The next prime is 40017550973. The reversal of 40017550938 is 83905571004.

It is a self number, because there is not a number n which added to its sum of digits gives 40017550938.

It is not an unprimeable number, because it can be changed into a prime (40017550931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979318 + ... + 1019361.

It is an arithmetic number, because the mean of its divisors is an integer number (2590289280).

Almost surely, 2^40017550938 is an apocalyptic number.

40017550938 is an abundant number, since it is smaller than the sum of its proper divisors (42871706022).

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

40017550938 is a wasteful number, since it uses less digits than its factorization.

40017550938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998802.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 40017550938 in words is "forty billion, seventeen million, five hundred fifty thousand, nine hundred thirty-eight".