7490749 has 16 divisors (see below), whose sum is σ = 8823168. Its totient is φ = 6227712.

The previous prime is 7490737. The next prime is 7490759. The reversal of 7490749 is 9470947.

It is a cyclic number.

It is not a de Polignac number, because 7490749 - 2¹⁹ = 6966461 is a prime.

It is a super-2 number, since 2×7490749² = 112222641162002, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7490759) 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 15 ways as a sum of consecutive naturals, for example, 54609 + ... + 54745.

It is an arithmetic number, because the mean of its divisors is an integer number (551448).

Almost surely, 2^7490749 is an apocalyptic number.

It is an amenable number.

7490749 is a deficient number, since it is larger than the sum of its proper divisors (1332419).

7490749 is a wasteful number, since it uses less digits than its factorization.

7490749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 7490749 is about 2736.9232725818. The cubic root of 7490749 is about 195.6628679666.

The spelling of 7490749 in words is "seven million, four hundred ninety thousand, seven hundred forty-nine".