749869642 has 16 divisors (see below), whose sum is σ = 1148827680. Its totient is φ = 367010352.

The previous prime is 749869619. The next prime is 749869649. The reversal of 749869642 is 246968947.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (749869649) 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, 2628 + ... + 38815.

It is an arithmetic number, because the mean of its divisors is an integer number (71801730).

Almost surely, 2^749869642 is an apocalyptic number.

749869642 is a deficient number, since it is larger than the sum of its proper divisors (398958038).

749869642 is a wasteful number, since it uses less digits than its factorization.

749869642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41637.

The product of its digits is 5225472, while the sum is 55.

The square root of 749869642 is about 27383.7477712602. The cubic root of 749869642 is about 908.5076542091.

The spelling of 749869642 in words is "seven hundred forty-nine million, eight hundred sixty-nine thousand, six hundred forty-two".