744420742 has 32 divisors (see below), whose sum is σ = 1220637600. Its totient is φ = 338435328.

The previous prime is 744420697. The next prime is 744420751. The reversal of 744420742 is 247024447.

It is a super-2 number, since 2×744420742² = 1108324482239661128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 744420698 and 744420707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 899733 + ... + 900559.

It is an arithmetic number, because the mean of its divisors is an integer number (38144925).

Almost surely, 2^744420742 is an apocalyptic number.

744420742 is a deficient number, since it is larger than the sum of its proper divisors (476216858).

744420742 is a wasteful number, since it uses less digits than its factorization.

744420742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320.

The product of its (nonzero) digits is 50176, while the sum is 34.

The square root of 744420742 is about 27284.0748789472. The cubic root of 744420742 is about 906.3017567777.

The spelling of 744420742 in words is "seven hundred forty-four million, four hundred twenty thousand, seven hundred forty-two".