742781444 has 24 divisors (see below), whose sum is σ = 1330385280. Its totient is φ = 362752416.

The previous prime is 742781419. The next prime is 742781449. The reversal of 742781444 is 444187247.

It is not an unprimeable number, because it can be changed into a prime (742781449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27029 + ... + 47075.

It is an arithmetic number, because the mean of its divisors is an integer number (55432720).

Almost surely, 2^742781444 is an apocalyptic number.

It is an amenable number.

742781444 is a deficient number, since it is larger than the sum of its proper divisors (587603836).

742781444 is a wasteful number, since it uses less digits than its factorization.

742781444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20267 (or 20265 counting only the distinct ones).

The product of its digits is 200704, while the sum is 41.

The square root of 742781444 is about 27254.0170250185. The cubic root of 742781444 is about 905.6360084681.

The spelling of 742781444 in words is "seven hundred forty-two million, seven hundred eighty-one thousand, four hundred forty-four".