40228746 has 8 divisors (see below), whose sum is σ = 80457504. Its totient is φ = 13409580.

The previous prime is 40228729. The next prime is 40228753. The reversal of 40228746 is 64782204.

It is a sphenic number, since it is the product of 3 distinct primes.

40228746 is an admirable 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, 3352390 + ... + 3352401.

It is an arithmetic number, because the mean of its divisors is an integer number (10057188).

Almost surely, 2^40228746 is an apocalyptic number.

40228746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40228746 is a wasteful number, since it uses less digits than its factorization.

40228746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704796.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 40228746 is about 6342.6134991815. The cubic root of 40228746 is about 342.6458675033.

The spelling of 40228746 in words is "forty million, two hundred twenty-eight thousand, seven hundred forty-six".