40399122 has 8 divisors (see below), whose sum is σ = 80798256. Its totient is φ = 13466372.

The previous prime is 40399103. The next prime is 40399127. The reversal of 40399122 is 22199304.

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

40399122 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 40399122.

It is not an unprimeable number, because it can be changed into a prime (40399127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3366588 + ... + 3366599.

It is an arithmetic number, because the mean of its divisors is an integer number (10099782).

Almost surely, 2^40399122 is an apocalyptic number.

40399122 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.

40399122 is a wasteful number, since it uses less digits than its factorization.

40399122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6733192.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 40399122 is about 6356.0303649369. The cubic root of 40399122 is about 343.1289085855.

The spelling of 40399122 in words is "forty million, three hundred ninety-nine thousand, one hundred twenty-two".