7242738 has 8 divisors (see below), whose sum is σ = 14485488. Its totient is φ = 2414244.

The previous prime is 7242737. The next prime is 7242751. The reversal of 7242738 is 8372427.

It is a sphenic number, since it is the product of 3 distinct primes.

7242738 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7242699 and 7242708.

It is not an unprimeable number, because it can be changed into a prime (7242733) 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 3 ways as a sum of consecutive naturals, for example, 603556 + ... + 603567.

It is an arithmetic number, because the mean of its divisors is an integer number (1810686).

Almost surely, 2^7242738 is an apocalyptic number.

7242738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7242738 is a wasteful number, since it uses less digits than its factorization.

7242738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207128.

The product of its digits is 18816, while the sum is 33.

The square root of 7242738 is about 2691.2335461643. The cubic root of 7242738 is about 193.4791890498.

The spelling of 7242738 in words is "seven million, two hundred forty-two thousand, seven hundred thirty-eight".