7242399 has 8 divisors (see below), whose sum is σ = 10729520. Its totient is φ = 4828248.

The previous prime is 7242383. The next prime is 7242409. The reversal of 7242399 is 9932427.

It is not a de Polignac number, because 7242399 - 2⁴ = 7242383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7242329) 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 7 ways as a sum of consecutive naturals, for example, 134092 + ... + 134145.

It is an arithmetic number, because the mean of its divisors is an integer number (1341190).

Almost surely, 2^7242399 is an apocalyptic number.

7242399 is a deficient number, since it is larger than the sum of its proper divisors (3487121).

7242399 is a wasteful number, since it uses less digits than its factorization.

7242399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268246 (or 268240 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 7242399 is about 2691.1705631565. The cubic root of 7242399 is about 193.4761703724.

The spelling of 7242399 in words is "seven million, two hundred forty-two thousand, three hundred ninety-nine".