40638698 has 8 divisors (see below), whose sum is σ = 62375808. Its totient is φ = 19846764.

The previous prime is 40638673. The next prime is 40638727. The reversal of 40638698 is 89683604.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236186 + ... + 236357.

It is an arithmetic number, because the mean of its divisors is an integer number (7796976).

Almost surely, 2^40638698 is an apocalyptic number.

40638698 is a deficient number, since it is larger than the sum of its proper divisors (21737110).

40638698 is a wasteful number, since it uses less digits than its factorization.

40638698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472588.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 40638698 is about 6374.8488609535. The cubic root of 40638698 is about 343.8058497464.

The spelling of 40638698 in words is "forty million, six hundred thirty-eight thousand, six hundred ninety-eight".