740644746 has 128 divisors (see below), whose sum is σ = 1724405760. Its totient is φ = 210739200.

The previous prime is 740644741. The next prime is 740644747. The reversal of 740644746 is 647446047.

It is a junction number, because it is equal to n+sod(n) for n = 740644698 and 740644707.

It is not an unprimeable number, because it can be changed into a prime (740644741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3759520 + ... + 3759716.

It is an arithmetic number, because the mean of its divisors is an integer number (13471920).

Almost surely, 2^740644746 is an apocalyptic number.

740644746 is an abundant number, since it is smaller than the sum of its proper divisors (983761014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

740644746 is a wasteful number, since it uses less digits than its factorization.

740644746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its (nonzero) digits is 451584, while the sum is 42.

The square root of 740644746 is about 27214.7891044557. The cubic root of 740644746 is about 904.7667850375.

The spelling of 740644746 in words is "seven hundred forty million, six hundred forty-four thousand, seven hundred forty-six".