40103698 has 4 divisors (see below), whose sum is σ = 60155550. Its totient is φ = 20051848.

The previous prime is 40103683. The next prime is 40103741. The reversal of 40103698 is 89630104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31618129 + 8485569 = 5623^2 + 2913^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10025923 + ... + 10025926.

Almost surely, 2^40103698 is an apocalyptic number.

40103698 is a deficient number, since it is larger than the sum of its proper divisors (20051852).

40103698 is a wasteful number, since it uses less digits than its factorization.

40103698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20051851.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 40103698 is about 6332.7480606763. The cubic root of 40103698 is about 342.2904694587.

The spelling of 40103698 in words is "forty million, one hundred three thousand, six hundred ninety-eight".