749742 has 16 divisors (see below), whose sum is σ = 1713792. Its totient is φ = 214200.

The previous prime is 749741. The next prime is 749747. The reversal of 749742 is 247947.

It is a super-2 number, since 2×749742² = 1124226133128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8884 + ... + 8967.

It is an arithmetic number, because the mean of its divisors is an integer number (107112).

2⁷⁴⁹⁷⁴² is an apocalyptic number.

749742 is an abundant number, since it is smaller than the sum of its proper divisors (964050).

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

749742 is a wasteful number, since it uses less digits than its factorization.

749742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17863.

The product of its digits is 14112, while the sum is 33.

The square root of 749742 is about 865.8764346025. The cubic root of 749742 is about 90.8456102887.

The spelling of 749742 in words is "seven hundred forty-nine thousand, seven hundred forty-two".