40102112440 has 64 divisors (see below), whose sum is σ = 97328770560. Its totient is φ = 14782817280.

The previous prime is 40102112411. The next prime is 40102112471. The reversal of 40102112440 is 4421120104.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 258345 + ... + 383335.

It is an arithmetic number, because the mean of its divisors is an integer number (1520762040).

Almost surely, 2^40102112440 is an apocalyptic number.

40102112440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40102112440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48664385280).

40102112440 is an abundant number, since it is smaller than the sum of its proper divisors (57226658120).

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

40102112440 is a wasteful number, since it uses less digits than its factorization.

40102112440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125632 (or 125628 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 40102112440 its reverse (4421120104), we get a palindrome (44523232544).

The spelling of 40102112440 in words is "forty billion, one hundred two million, one hundred twelve thousand, four hundred forty".