749458 has 4 divisors (see below), whose sum is σ = 1124190. Its totient is φ = 374728.

The previous prime is 749453. The next prime is 749461. The reversal of 749458 is 854947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 854947 = 17 ⋅50291.

It can be written as a sum of positive squares in only one way, i.e., 710649 + 38809 = 843^2 + 197^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (749453) by changing a digit.

749458 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187363 + ... + 187366.

2⁷⁴⁹⁴⁵⁸ is an apocalyptic number.

749458 is a deficient number, since it is larger than the sum of its proper divisors (374732).

749458 is a wasteful number, since it uses less digits than its factorization.

749458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374731.

The product of its digits is 40320, while the sum is 37.

The square root of 749458 is about 865.7124233832. The cubic root of 749458 is about 90.8341381593.

The spelling of 749458 in words is "seven hundred forty-nine thousand, four hundred fifty-eight".