40351722 has 16 divisors (see below), whose sum is σ = 81503712. Its totient is φ = 13317200.

The previous prime is 40351721. The next prime is 40351723. The reversal of 40351722 is 22715304.

It is an interprime number because it is at equal distance from previous prime (40351721) and next prime (40351723).

It is a super-2 number, since 2×40351722² = 3256522936730568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40351692 and 40351701.

It is not an unprimeable number, because it can be changed into a prime (40351721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32688 + ... + 33899.

It is an arithmetic number, because the mean of its divisors is an integer number (5093982).

Almost surely, 2^40351722 is an apocalyptic number.

40351722 is an abundant number, since it is smaller than the sum of its proper divisors (41151990).

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

40351722 is a wasteful number, since it uses less digits than its factorization.

40351722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66693.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 40351722 is about 6352.3005281551. The cubic root of 40351722 is about 342.9946591716.

It can be divided in two parts, 403 and 51722, that added together give a palindrome (52125).

The spelling of 40351722 in words is "forty million, three hundred fifty-one thousand, seven hundred twenty-two".