40252371408 has 60 divisors (see below), whose sum is σ = 113118261828. Its totient is φ = 13361771520.

The previous prime is 40252371371. The next prime is 40252371443. The reversal of 40252371408 is 80417325204.

It is a happy number.

40252371408 is a `hidden beast` number, since 402 + 5 + 237 + 14 + 0 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10450563984 + 29801807424 = 102228^2 + 172632^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 545235 + ... + 614642.

Almost surely, 2^40252371408 is an apocalyptic number.

40252371408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40252371408 is an abundant number, since it is smaller than the sum of its proper divisors (72865890420).

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

40252371408 is a wasteful number, since it uses less digits than its factorization.

40252371408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160132 (or 1160123 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 40252371408 in words is "forty billion, two hundred fifty-two million, three hundred seventy-one thousand, four hundred eight".