40748942592 has 144 divisors (see below), whose sum is σ = 120942498880. Its totient is φ = 13533308928.

The previous prime is 40748942587. The next prime is 40748942593. The reversal of 40748942592 is 29524984704.

It is a happy number.

40748942592 is a `hidden beast` number, since 4 + 0 + 7 + 4 + 8 + 9 + 42 + 592 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×40748942592² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40748942593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1903983 + ... + 1925265.

Almost surely, 2^40748942592 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 40748942592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60471249440).

40748942592 is an abundant number, since it is smaller than the sum of its proper divisors (80193556288).

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

40748942592 is a wasteful number, since it uses less digits than its factorization.

40748942592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21585 (or 21565 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 40748942592 in words is "forty billion, seven hundred forty-eight million, nine hundred forty-two thousand, five hundred ninety-two".