40664022 has 32 divisors (see below), whose sum is σ = 94848000. Its totient is φ = 11617704.

The previous prime is 40663991. The next prime is 40664027. The reversal of 40664022 is 22046604.

It is a junction number, because it is equal to n+sod(n) for n = 40663983 and 40664001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40664027) 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, 7822 + ... + 11937.

It is an arithmetic number, because the mean of its divisors is an integer number (2964000).

Almost surely, 2^40664022 is an apocalyptic number.

40664022 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40664022 is an abundant number, since it is smaller than the sum of its proper divisors (54183978).

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

40664022 is a wasteful number, since it uses less digits than its factorization.

40664022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19785 (or 19771 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 40664022 is about 6376.8347947865. The cubic root of 40664022 is about 343.8772491096.

The spelling of 40664022 in words is "forty million, six hundred sixty-four thousand, twenty-two".