740040191 has 16 divisors (see below), whose sum is σ = 828643200. Its totient is φ = 655089120.

The previous prime is 740040187. The next prime is 740040193. The reversal of 740040191 is 191040047.

It is a cyclic number.

It is not a de Polignac number, because 740040191 - 2² = 740040187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 740040191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740040193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162836 + ... + 167318.

It is an arithmetic number, because the mean of its divisors is an integer number (51790200).

Almost surely, 2^740040191 is an apocalyptic number.

740040191 is a deficient number, since it is larger than the sum of its proper divisors (88603009).

740040191 is a wasteful number, since it uses less digits than its factorization.

740040191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 740040191 is about 27203.6797327126. The cubic root of 740040191 is about 904.5205445470.

The spelling of 740040191 in words is "seven hundred forty million, forty thousand, one hundred ninety-one".