740571493 has 16 divisors (see below), whose sum is σ = 852042240. Its totient is φ = 639014400.

The previous prime is 740571473. The next prime is 740571523. The reversal of 740571493 is 394175047.

It is a cyclic number.

It is not a de Polignac number, because 740571493 - 2²⁵ = 707017061 is a prime.

It is a super-2 number, since 2×740571493² = 1096892272488498098, 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 (740571473) 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 15 ways as a sum of consecutive naturals, for example, 26968 + ... + 46993.

It is an arithmetic number, because the mean of its divisors is an integer number (53252640).

Almost surely, 2^740571493 is an apocalyptic number.

It is an amenable number.

740571493 is a deficient number, since it is larger than the sum of its proper divisors (111470747).

740571493 is a wasteful number, since it uses less digits than its factorization.

740571493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74028.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 740571493 is about 27213.4432404281. The cubic root of 740571493 is about 904.7369555919.

The spelling of 740571493 in words is "seven hundred forty million, five hundred seventy-one thousand, four hundred ninety-three".