740940390061 has 16 divisors (see below), whose sum is σ = 752163800320. Its totient is φ = 729746962560.

The previous prime is 740940390053. The next prime is 740940390089. The reversal of 740940390061 is 160093049047.

It is a cyclic number.

It is not a de Polignac number, because 740940390061 - 2³ = 740940390053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740940390461) 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, 238319575 + ... + 238322683.

It is an arithmetic number, because the mean of its divisors is an integer number (47010237520).

Almost surely, 2^740940390061 is an apocalyptic number.

It is an amenable number.

740940390061 is a deficient number, since it is larger than the sum of its proper divisors (11223410259).

740940390061 is a wasteful number, since it uses less digits than its factorization.

740940390061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6796.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 740940390061 in words is "seven hundred forty billion, nine hundred forty million, three hundred ninety thousand, sixty-one".