40493186 has 16 divisors (see below), whose sum is σ = 62403264. Its totient is φ = 19695984.

The previous prime is 40493149. The next prime is 40493191. The reversal of 40493186 is 68139404.

It is a super-2 number, since 2×40493186² = 3279396224861192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24395 + ... + 26001.

It is an arithmetic number, because the mean of its divisors is an integer number (3900204).

Almost surely, 2^40493186 is an apocalyptic number.

40493186 is a deficient number, since it is larger than the sum of its proper divisors (21910078).

40493186 is a wasteful number, since it uses less digits than its factorization.

40493186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 40493186 is about 6363.4256497582. The cubic root of 40493186 is about 343.3950122220.

The spelling of 40493186 in words is "forty million, four hundred ninety-three thousand, one hundred eighty-six".