7404994 has 4 divisors (see below), whose sum is σ = 11107494. Its totient is φ = 3702496.

The previous prime is 7404983. The next prime is 7404997. The reversal of 7404994 is 4994047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4994047 = 1307 ⋅3821.

It can be written as a sum of positive squares in only one way, i.e., 6275025 + 1129969 = 2505^2 + 1063^2 .

It is a super-2 number, since 2×7404994² = 109667872280072, which contains 22 as substring.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (7404997) 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 as a sum of consecutive naturals, namely, 1851247 + ... + 1851250.

Almost surely, 2^7404994 is an apocalyptic number.

7404994 is a deficient number, since it is larger than the sum of its proper divisors (3702500).

7404994 is a wasteful number, since it uses less digits than its factorization.

7404994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702499.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 7404994 is about 2721.2118623878. The cubic root of 7404994 is about 194.9133430430.

The spelling of 7404994 in words is "seven million, four hundred four thousand, nine hundred ninety-four".