40157226 has 24 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 13223976.

The previous prime is 40157197. The next prime is 40157231. The reversal of 40157226 is 62275104.

It is a super-2 number, since 2×40157226² = 3225205600030152, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40157226.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11946 + ... + 14933.

It is an arithmetic number, because the mean of its divisors is an integer number (3669120).

Almost surely, 2^40157226 is an apocalyptic number.

40157226 is an abundant number, since it is smaller than the sum of its proper divisors (47901654).

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

40157226 is a wasteful number, since it uses less digits than its factorization.

40157226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26970 (or 26967 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 40157226 is about 6336.9729366631. The cubic root of 40157226 is about 342.4426913189.

The spelling of 40157226 in words is "forty million, one hundred fifty-seven thousand, two hundred twenty-six".