740661168 has 80 divisors (see below), whose sum is σ = 2181797856. Its totient is φ = 214487040.

The previous prime is 740661149. The next prime is 740661193. The reversal of 740661168 is 861166047.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24303 + ... + 45518.

Almost surely, 2^740661168 is an apocalyptic number.

740661168 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

740661168 is an abundant number, since it is smaller than the sum of its proper divisors (1441136688).

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

740661168 is a wasteful number, since it uses less digits than its factorization.

740661168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69862 (or 69856 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 740661168 is about 27215.0908137379. The cubic root of 740661168 is about 904.7734719907.

The spelling of 740661168 in words is "seven hundred forty million, six hundred sixty-one thousand, one hundred sixty-eight".