40028799 has 8 divisors (see below), whose sum is σ = 53492400. Its totient is φ = 26625536.

The previous prime is 40028789. The next prime is 40028827. The reversal of 40028799 is 99782004.

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

It is a cyclic number.

It is not a de Polignac number, because 40028799 - 2⁵ = 40028767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40028789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13512 + ... + 16205.

It is an arithmetic number, because the mean of its divisors is an integer number (6686550).

Almost surely, 2^40028799 is an apocalyptic number.

40028799 is a deficient number, since it is larger than the sum of its proper divisors (13463601).

40028799 is a wasteful number, since it uses less digits than its factorization.

40028799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30169.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 40028799 is about 6326.8316715399. The cubic root of 40028799 is about 342.0772456411.

The spelling of 40028799 in words is "forty million, twenty-eight thousand, seven hundred ninety-nine".