40120715124 has 192 divisors, whose sum is σ = 122586078720. Its totient is φ = 11107860480.

The previous prime is 40120715123. The next prime is 40120715143. The reversal of 40120715124 is 42151702104.

40120715124 is a `hidden beast` number, since 401 + 207 + 1 + 51 + 2 + 4 = 666.

40120715124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40120715124² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40120715123) 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, 7186014 + ... + 7191594.

It is an arithmetic number, because the mean of its divisors is an integer number (638469160).

Almost surely, 2^40120715124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40120715124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61293039360).

40120715124 is an abundant number, since it is smaller than the sum of its proper divisors (82465363596).

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

40120715124 is a wasteful number, since it uses less digits than its factorization.

40120715124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895 (or 5887 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

It can be divided in two parts, 4012071 and 5124, that added together give a triangular number (4017195 = T₂₈₃₄).

The spelling of 40120715124 in words is "forty billion, one hundred twenty million, seven hundred fifteen thousand, one hundred twenty-four".