40100511440 has 40 divisors (see below), whose sum is σ = 101709481248. Its totient is φ = 14582003840.

The previous prime is 40100511391. The next prime is 40100511463. The reversal of 40100511440 is 4411500104.

40100511440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 22783502 + ... + 22785261.

Almost surely, 2^40100511440 is an apocalyptic number.

40100511440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40100511440 is an abundant number, since it is smaller than the sum of its proper divisors (61608969808).

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

40100511440 is a wasteful number, since it uses less digits than its factorization.

40100511440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45568787 (or 45568781 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The spelling of 40100511440 in words is "forty billion, one hundred million, five hundred eleven thousand, four hundred forty".