40156422 has 16 divisors (see below), whose sum is σ = 81630192. Its totient is φ = 13165920.

The previous prime is 40156399. The next prime is 40156427. The reversal of 40156422 is 22465104.

It is a super-2 number, since 2×40156422² = 3225076455684168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40156392 and 40156401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40156427) 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, 54493 + ... + 55224.

It is an arithmetic number, because the mean of its divisors is an integer number (5101887).

Almost surely, 2^40156422 is an apocalyptic number.

40156422 is an abundant number, since it is smaller than the sum of its proper divisors (41473770).

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

40156422 is a wasteful number, since it uses less digits than its factorization.

40156422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109783.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 40156422 is about 6336.9094991171. The cubic root of 40156422 is about 342.4404059207.

The spelling of 40156422 in words is "forty million, one hundred fifty-six thousand, four hundred twenty-two".