49393666 has 12 divisors (see below), whose sum is σ = 86187078. Its totient is φ = 21168672.

The previous prime is 49393657. The next prime is 49393667. The reversal of 49393666 is 66639394.

It can be written as a sum of positive squares in only one way, i.e., 49294441 + 99225 = 7021^2 + 315^2 .

It is not an unprimeable number, because it can be changed into a prime (49393667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251911 + ... + 252106.

Almost surely, 2^49393666 is an apocalyptic number.

49393666 is a deficient number, since it is larger than the sum of its proper divisors (36793412).

49393666 is a wasteful number, since it uses less digits than its factorization.

49393666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504033 (or 504026 counting only the distinct ones).

The product of its digits is 629856, while the sum is 46.

The square root of 49393666 is about 7028.0627487239. The cubic root of 49393666 is about 366.9079203839.

The spelling of 49393666 in words is "forty-nine million, three hundred ninety-three thousand, six hundred sixty-six".