749451 has 8 divisors (see below), whose sum is σ = 1007424. Its totient is φ = 495560.

The previous prime is 749449. The next prime is 749453. The reversal of 749451 is 154947.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (749449) and next prime (749453).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 749451 - 2¹ = 749449 is a prime.

749451 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (749453) 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, 561 + ... + 1346.

It is an arithmetic number, because the mean of its divisors is an integer number (125928).

2⁷⁴⁹⁴⁵¹ is an apocalyptic number.

749451 is a deficient number, since it is larger than the sum of its proper divisors (257973).

749451 is a wasteful number, since it uses less digits than its factorization.

749451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041.

The product of its digits is 5040, while the sum is 30.

The square root of 749451 is about 865.7083804608. The cubic root of 749451 is about 90.8338553590.

The spelling of 749451 in words is "seven hundred forty-nine thousand, four hundred fifty-one".