7240994 has 4 divisors (see below), whose sum is σ = 10861494. Its totient is φ = 3620496.

The previous prime is 7240991. The next prime is 7241009. The reversal of 7240994 is 4990427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7219969 + 21025 = 2687^2 + 145^2 .

It is a Curzon number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (7240991) 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, 1810247 + ... + 1810250.

Almost surely, 2^7240994 is an apocalyptic number.

7240994 is a deficient number, since it is larger than the sum of its proper divisors (3620500).

7240994 is a wasteful number, since it uses less digits than its factorization.

7240994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3620499.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 7240994 is about 2690.9095116707. The cubic root of 7240994 is about 193.4636583305.

The spelling of 7240994 in words is "seven million, two hundred forty thousand, nine hundred ninety-four".