740736666 has 24 divisors (see below), whose sum is σ = 1674709920. Its totient is φ = 236176776.

The previous prime is 740736613. The next prime is 740736671. The reversal of 740736666 is 666637047.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 894196 + ... + 895023.

It is an arithmetic number, because the mean of its divisors is an integer number (69779580).

Almost surely, 2^740736666 is an apocalyptic number.

740736666 is an abundant number, since it is smaller than the sum of its proper divisors (933973254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

740736666 is a wasteful number, since it uses less digits than its factorization.

740736666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789250 (or 1789247 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The square root of 740736666 is about 27216.4778397206. The cubic root of 740736666 is about 904.8042131131.

The spelling of 740736666 in words is "seven hundred forty million, seven hundred thirty-six thousand, six hundred sixty-six".