7274538 has 24 divisors (see below), whose sum is σ = 16689348. Its totient is φ = 2282112.

The previous prime is 7274537. The next prime is 7274543. The reversal of 7274538 is 8354727.

It can be written as a sum of positive squares in 2 ways, for example, as 7273809 + 729 = 2697^2 + 27^2 .

It is a super-2 number, since 2×7274538² = 105837806226888, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7274537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11581 + ... + 12192.

Almost surely, 2^7274538 is an apocalyptic number.

7274538 is an abundant number, since it is smaller than the sum of its proper divisors (9414810).

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

7274538 is a wasteful number, since it uses less digits than its factorization.

7274538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23798 (or 23795 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 7274538 is about 2697.1351467807. The cubic root of 7274538 is about 193.7619391880.

The spelling of 7274538 in words is "seven million, two hundred seventy-four thousand, five hundred thirty-eight".