7242918 has 24 divisors (see below), whose sum is σ = 15391752. Its totient is φ = 2271744.

The previous prime is 7242887. The next prime is 7242943. The reversal of 7242918 is 8192427.

It is a happy number.

It is a super-2 number, since 2×7242918² = 104919722309448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 355 + ... + 3822.

It is an arithmetic number, because the mean of its divisors is an integer number (641323).

Almost surely, 2^7242918 is an apocalyptic number.

7242918 is an abundant number, since it is smaller than the sum of its proper divisors (8148834).

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

7242918 is a wasteful number, since it uses less digits than its factorization.

7242918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4216 (or 4199 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 7242918 is about 2691.2669878702. The cubic root of 7242918 is about 193.4807918490.

The spelling of 7242918 in words is "seven million, two hundred forty-two thousand, nine hundred eighteen".