7242945 has 8 divisors (see below), whose sum is σ = 11588736. Its totient is φ = 3862896.

The previous prime is 7242943. The next prime is 7242947. The reversal of 7242945 is 5492427.

It is an interprime number because it is at equal distance from previous prime (7242943) and next prime (7242947).

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

It is not a de Polignac number, because 7242945 - 2¹ = 7242943 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7242943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241417 + ... + 241446.

It is an arithmetic number, because the mean of its divisors is an integer number (1448592).

Almost surely, 2^7242945 is an apocalyptic number.

It is an amenable number.

7242945 is a deficient number, since it is larger than the sum of its proper divisors (4345791).

7242945 is a wasteful number, since it uses less digits than its factorization.

7242945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482871.

The product of its digits is 20160, while the sum is 33.

The square root of 7242945 is about 2691.2720040903. The cubic root of 7242945 is about 193.4810322666.

The spelling of 7242945 in words is "seven million, two hundred forty-two thousand, nine hundred forty-five".