40306858722 has 96 divisors (see below), whose sum is σ = 95166974448. Its totient is φ = 12255141888.

The previous prime is 40306858699. The next prime is 40306858727. The reversal of 40306858722 is 22785860304.

40306858722 is a `hidden beast` number, since 4 + 0 + 3 + 0 + 68 + 587 + 2 + 2 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 522168201 + 39784690521 = 22851^2 + 199461^2 .

It is not an unprimeable number, because it can be changed into a prime (40306858727) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 22992198 + ... + 22993950.

Almost surely, 2^40306858722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40306858722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47583487224).

40306858722 is an abundant number, since it is smaller than the sum of its proper divisors (54860115726).

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

40306858722 is a wasteful number, since it uses less digits than its factorization.

40306858722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884 (or 2881 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 40306858722 in words is "forty billion, three hundred six million, eight hundred fifty-eight thousand, seven hundred twenty-two".