740520739 has 4 divisors (see below), whose sum is σ = 846309424. Its totient is φ = 634732056.

The previous prime is 740520709. The next prime is 740520743. The reversal of 740520739 is 937025047.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 740520739 - 2⁹ = 740520227 is a prime.

It is a super-2 number, since 2×740520739² = 1096741929778212242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 740520698 and 740520707.

It is not an unprimeable number, because it can be changed into a prime (740520709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52894332 + ... + 52894345.

It is an arithmetic number, because the mean of its divisors is an integer number (211577356).

Almost surely, 2^740520739 is an apocalyptic number.

740520739 is a deficient number, since it is larger than the sum of its proper divisors (105788685).

740520739 is a wasteful number, since it uses less digits than its factorization.

740520739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105788684.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 740520739 is about 27212.5107073934. The cubic root of 740520739 is about 904.7162868386.

The spelling of 740520739 in words is "seven hundred forty million, five hundred twenty thousand, seven hundred thirty-nine".