40015198 has 8 divisors (see below), whose sum is σ = 61418808. Its totient is φ = 19542264.

The previous prime is 40015177. The next prime is 40015211. The reversal of 40015198 is 89151004.

It is a happy number.

40015198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232561 + ... + 232732.

It is an arithmetic number, because the mean of its divisors is an integer number (7677351).

Almost surely, 2^40015198 is an apocalyptic number.

40015198 is a deficient number, since it is larger than the sum of its proper divisors (21403610).

40015198 is a wasteful number, since it uses less digits than its factorization.

40015198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465338.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 40015198 is about 6325.7567136272. The cubic root of 40015198 is about 342.0384975415.

The spelling of 40015198 in words is "forty million, fifteen thousand, one hundred ninety-eight".