40394998 has 16 divisors (see below), whose sum is σ = 69757344. Its totient is φ = 17184960.

The previous prime is 40394987. The next prime is 40395011. The reversal of 40394998 is 89949304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8613 + ... + 12448.

It is an arithmetic number, because the mean of its divisors is an integer number (4359834).

Almost surely, 2^40394998 is an apocalyptic number.

40394998 is a deficient number, since it is larger than the sum of its proper divisors (29362346).

40394998 is a wasteful number, since it uses less digits than its factorization.

40394998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21207.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 40394998 is about 6355.7059403342. The cubic root of 40394998 is about 343.1172324920.

The spelling of 40394998 in words is "forty million, three hundred ninety-four thousand, nine hundred ninety-eight".