40194506 has 36 divisors (see below), whose sum is σ = 69093234. Its totient is φ = 17511120.

The previous prime is 40194499. The next prime is 40194523. The reversal of 40194506 is 60549104.

It can be written as a sum of positive squares in only one way, i.e., 26615281 + 13579225 = 5159^2 + 3685^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 599885 + ... + 599951.

Almost surely, 2^40194506 is an apocalyptic number.

40194506 is a deficient number, since it is larger than the sum of its proper divisors (28898728).

40194506 is a wasteful number, since it uses less digits than its factorization.

40194506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 40194506 is about 6339.9137218104. The cubic root of 40194506 is about 342.5486275460.

The spelling of 40194506 in words is "forty million, one hundred ninety-four thousand, five hundred six".