40152228 has 12 divisors (see below), whose sum is σ = 93688560. Its totient is φ = 13384072.

The previous prime is 40152199. The next prime is 40152251. The reversal of 40152228 is 82225104.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×40152228² = 3224402826727968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40152198 and 40152207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1672998 + ... + 1673021.

It is an arithmetic number, because the mean of its divisors is an integer number (7807380).

Almost surely, 2^40152228 is an apocalyptic number.

It is an amenable number.

40152228 is an abundant number, since it is smaller than the sum of its proper divisors (53536332).

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

40152228 is a wasteful number, since it uses less digits than its factorization.

40152228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346026 (or 3346024 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 40152228 is about 6336.5785720687. The cubic root of 40152228 is about 342.4284838337.

The spelling of 40152228 in words is "forty million, one hundred fifty-two thousand, two hundred twenty-eight".