40363640040 has 32 divisors (see below), whose sum is σ = 121090920480. Its totient is φ = 10763637312.

The previous prime is 40363640017. The next prime is 40363640041. The reversal of 40363640040 is 4004636304.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (40363640041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168181714 + ... + 168181953.

It is an arithmetic number, because the mean of its divisors is an integer number (3784091265).

Almost surely, 2^40363640040 is an apocalyptic number.

40363640040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40363640040 is an abundant number, since it is smaller than the sum of its proper divisors (80727280440).

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

40363640040 is a wasteful number, since it uses less digits than its factorization.

40363640040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336363681 (or 336363677 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The spelling of 40363640040 in words is "forty billion, three hundred sixty-three million, six hundred forty thousand, forty".