40118998 has 8 divisors (see below), whose sum is σ = 60216192. Its totient is φ = 20046936.

The previous prime is 40118993. The next prime is 40118999. The reversal of 40118998 is 89981104.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40118998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40118993) 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, 1590 + ... + 9097.

It is an arithmetic number, because the mean of its divisors is an integer number (7527024).

Almost surely, 2^40118998 is an apocalyptic number.

40118998 is a deficient number, since it is larger than the sum of its proper divisors (20097194).

40118998 is a wasteful number, since it uses less digits than its factorization.

40118998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12566.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 40118998 is about 6333.9559518519. The cubic root of 40118998 is about 342.3339931119. Note that the first 3 decimals are identical.

The spelling of 40118998 in words is "forty million, one hundred eighteen thousand, nine hundred ninety-eight".