40070481792 has 128 divisors (see below), whose sum is σ = 116894448000. Its totient is φ = 12060887040.

The previous prime is 40070481769. The next prime is 40070481809. The reversal of 40070481792 is 29718407004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×40070481792² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597543 + ... + 661209.

It is an arithmetic number, because the mean of its divisors is an integer number (913237875).

Almost surely, 2^40070481792 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 40070481792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58447224000).

40070481792 is an abundant number, since it is smaller than the sum of its proper divisors (76823966208).

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

40070481792 is a wasteful number, since it uses less digits than its factorization.

40070481792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63844 (or 63832 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

Adding to 40070481792 its reverse (29718407004), we get a palindrome (69788888796).

The spelling of 40070481792 in words is "forty billion, seventy million, four hundred eighty-one thousand, seven hundred ninety-two".