40258228 has 12 divisors (see below), whose sum is σ = 72170532. Its totient is φ = 19638080.

The previous prime is 40258219. The next prime is 40258291. The reversal of 40258228 is 82285204.

It can be written as a sum of positive squares in 2 ways, for example, as 5895184 + 34363044 = 2428^2 + 5862^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40258228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122575 + ... + 122902.

It is an arithmetic number, because the mean of its divisors is an integer number (6014211).

Almost surely, 2^40258228 is an apocalyptic number.

It is an amenable number.

40258228 is a deficient number, since it is larger than the sum of its proper divisors (31912304).

40258228 is a wasteful number, since it uses less digits than its factorization.

40258228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245522 (or 245520 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 40258228 is about 6344.9371943306. The cubic root of 40258228 is about 342.7295507707.

The spelling of 40258228 in words is "forty million, two hundred fifty-eight thousand, two hundred twenty-eight".