742705044 has 24 divisors (see below), whose sum is σ = 1834918848. Its totient is φ = 233005440.

The previous prime is 742705031. The next prime is 742705049. The reversal of 742705044 is 440507247.

It is a super-2 number, since 2×742705044² = 1103221564766083872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 742704996 and 742705014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742705049) 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 7 ways as a sum of consecutive naturals, for example, 1820152 + ... + 1820559.

It is an arithmetic number, because the mean of its divisors is an integer number (76454952).

Almost surely, 2^742705044 is an apocalyptic number.

It is an amenable number.

742705044 is an abundant number, since it is smaller than the sum of its proper divisors (1092213804).

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

742705044 is a wasteful number, since it uses less digits than its factorization.

742705044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640735 (or 3640733 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 742705044 is about 27252.6153607319. The cubic root of 742705044 is about 905.6049571793.

The spelling of 742705044 in words is "seven hundred forty-two million, seven hundred five thousand, forty-four".