40493188 has 24 divisors (see below), whose sum is σ = 72396800. Its totient is φ = 19813248.

The previous prime is 40493149. The next prime is 40493191. The reversal of 40493188 is 88139404.

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, 39628 + ... + 40636.

Almost surely, 2^40493188 is an apocalyptic number.

It is an amenable number.

40493188 is a deficient number, since it is larger than the sum of its proper divisors (31903612).

40493188 is a wasteful number, since it uses less digits than its factorization.

40493188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1217 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 40493188 is about 6363.4258069062. The cubic root of 40493188 is about 343.3950178755.

The spelling of 40493188 in words is "forty million, four hundred ninety-three thousand, one hundred eighty-eight".