40356222 has 16 divisors (see below), whose sum is σ = 81228432. Its totient is φ = 13366080.

The previous prime is 40356179. The next prime is 40356223. The reversal of 40356222 is 22265304.

It is a super-2 number, since 2×40356222² = 3257249308226568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40356192 and 40356201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40356223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20479 + ... + 22362.

It is an arithmetic number, because the mean of its divisors is an integer number (5076777).

Almost surely, 2^40356222 is an apocalyptic number.

40356222 is an abundant number, since it is smaller than the sum of its proper divisors (40872210).

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

40356222 is a wasteful number, since it uses less digits than its factorization.

40356222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43003.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 40356222 is about 6352.6547206660. The cubic root of 40356222 is about 343.0074088844.

The spelling of 40356222 in words is "forty million, three hundred fifty-six thousand, two hundred twenty-two".