7499740 has 12 divisors (see below), whose sum is σ = 15749496. Its totient is φ = 2999888.

The previous prime is 7499729. The next prime is 7499741. The reversal of 7499740 is 479947.

It is a super-2 number, since 2×7499740² = 112492200135200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7499693 and 7499702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7499741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187474 + ... + 187513.

It is an arithmetic number, because the mean of its divisors is an integer number (1312458).

Almost surely, 2^7499740 is an apocalyptic number.

It is an amenable number.

7499740 is an abundant number, since it is smaller than the sum of its proper divisors (8249756).

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

7499740 is a wasteful number, since it uses less digits than its factorization.

7499740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374996 (or 374994 counting only the distinct ones).

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

The square root of 7499740 is about 2738.5653178261. The cubic root of 7499740 is about 195.7411201088.

The spelling of 7499740 in words is "seven million, four hundred ninety-nine thousand, seven hundred forty".