740730181 has 4 divisors (see below), whose sum is σ = 779716000. Its totient is φ = 701744364.

The previous prime is 740730163. The next prime is 740730217. The reversal of 740730181 is 181037047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 740730181 - 2²¹ = 738633029 is a prime.

It is a super-2 number, since 2×740730181² = 1097362402088585522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740730281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19492881 + ... + 19492918.

It is an arithmetic number, because the mean of its divisors is an integer number (194929000).

Almost surely, 2^740730181 is an apocalyptic number.

It is an amenable number.

740730181 is a deficient number, since it is larger than the sum of its proper divisors (38985819).

740730181 is a wasteful number, since it uses less digits than its factorization.

740730181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38985818.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 740730181 is about 27216.3587020748. The cubic root of 740730181 is about 904.8015726459.

The spelling of 740730181 in words is "seven hundred forty million, seven hundred thirty thousand, one hundred eighty-one".