744894142 has 4 divisors (see below), whose sum is σ = 1117341216. Its totient is φ = 372447070.

The previous prime is 744894091. The next prime is 744894173. The reversal of 744894142 is 241498447.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241498447 = 17 ⋅14205791.

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 as a sum of consecutive naturals, namely, 186223534 + ... + 186223537.

It is an arithmetic number, because the mean of its divisors is an integer number (279335304).

Almost surely, 2^744894142 is an apocalyptic number.

744894142 is a deficient number, since it is larger than the sum of its proper divisors (372447074).

744894142 is a wasteful number, since it uses less digits than its factorization.

744894142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372447073.

The product of its digits is 258048, while the sum is 43.

The square root of 744894142 is about 27292.7488905020. The cubic root of 744894142 is about 906.4938311036.

The spelling of 744894142 in words is "seven hundred forty-four million, eight hundred ninety-four thousand, one hundred forty-two".