40465722 has 32 divisors (see below), whose sum is σ = 89616384. Its totient is φ = 12078000.

The previous prime is 40465721. The next prime is 40465741. The reversal of 40465722 is 22756404.

It is a self number, because there is not a number n which added to its sum of digits gives 40465722.

It is not an unprimeable number, because it can be changed into a prime (40465721) 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, 154 + ... + 8997.

It is an arithmetic number, because the mean of its divisors is an integer number (2800512).

Almost surely, 2^40465722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40465722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44808192).

40465722 is an abundant number, since it is smaller than the sum of its proper divisors (49150662).

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

40465722 is a wasteful number, since it uses less digits than its factorization.

40465722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9234.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 40465722 is about 6361.2673265632. The cubic root of 40465722 is about 343.3173601978.

The spelling of 40465722 in words is "forty million, four hundred sixty-five thousand, seven hundred twenty-two".