40603698 has 12 divisors (see below), whose sum is σ = 87974718. Its totient is φ = 13534560.

The previous prime is 40603681. The next prime is 40603727. The reversal of 40603698 is 89630604.

40603698 is a `hidden beast` number, since 40 + 603 + 6 + 9 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24176889 + 16426809 = 4917^2 + 4053^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1127863 + ... + 1127898.

Almost surely, 2^40603698 is an apocalyptic number.

40603698 is an abundant number, since it is smaller than the sum of its proper divisors (47371020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40603698 is a wasteful number, since it uses less digits than its factorization.

40603698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255769 (or 2255766 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 40603698 is about 6372.1031065104. The cubic root of 40603698 is about 343.7071206900.

The spelling of 40603698 in words is "forty million, six hundred three thousand, six hundred ninety-eight".