740534391 has 24 divisors (see below), whose sum is σ = 1119324960. Its totient is φ = 471272256.

The previous prime is 740534371. The next prime is 740534393. The reversal of 740534391 is 193435047.

740534391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 740534391 - 2⁵ = 740534359 is a prime.

It is a super-3 number, since 3×740534391³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740534393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3331 + ... + 38628.

It is an arithmetic number, because the mean of its divisors is an integer number (46638540).

Almost surely, 2^740534391 is an apocalyptic number.

740534391 is a deficient number, since it is larger than the sum of its proper divisors (378790569).

740534391 is a wasteful number, since it uses less digits than its factorization.

740534391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42055 (or 42052 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 740534391 is about 27212.7615467449. The cubic root of 740534391 is about 904.7218464897.

The spelling of 740534391 in words is "seven hundred forty million, five hundred thirty-four thousand, three hundred ninety-one".