40402196 has 12 divisors (see below), whose sum is σ = 70756980. Its totient is φ = 20185920.

The previous prime is 40402177. The next prime is 40402253. The reversal of 40402196 is 69120404.

It can be written as a sum of positive squares in 2 ways, for example, as 15760900 + 24641296 = 3970^2 + 4964^2 .

It is a congruent number.

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, 3950 + ... + 9818.

It is an arithmetic number, because the mean of its divisors is an integer number (5896415).

Almost surely, 2^40402196 is an apocalyptic number.

It is an amenable number.

40402196 is a deficient number, since it is larger than the sum of its proper divisors (30354784).

40402196 is a wasteful number, since it uses less digits than its factorization.

40402196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594 (or 7592 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 40402196 is about 6356.2721779357. The cubic root of 40402196 is about 343.1376113449.

The spelling of 40402196 in words is "forty million, four hundred two thousand, one hundred ninety-six".