7402249 has 4 divisors (see below), whose sum is σ = 7422160. Its totient is φ = 7382340.

The previous prime is 7402237. The next prime is 7402253. The reversal of 7402249 is 9422047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9422047 = 31 ⋅303937.

It is a cyclic number.

It is not a de Polignac number, because 7402249 - 2⁵ = 7402217 is a prime.

It is a Duffinian number.

7402249 is a lucky number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (7402049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9387 + ... + 10144.

It is an arithmetic number, because the mean of its divisors is an integer number (1855540).

Almost surely, 2^7402249 is an apocalyptic number.

It is an amenable number.

7402249 is a deficient number, since it is larger than the sum of its proper divisors (19911).

7402249 is a wasteful number, since it uses less digits than its factorization.

7402249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19910.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 7402249 is about 2720.7074447651. The cubic root of 7402249 is about 194.8892555487.

The spelling of 7402249 in words is "seven million, four hundred two thousand, two hundred forty-nine".