7290072 has 72 divisors (see below), whose sum is σ = 21071700. Its totient is φ = 2270592.

The previous prime is 7290061. The next prime is 7290077. The reversal of 7290072 is 2700927.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7290077) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 99828 + ... + 99900.

Almost surely, 2^7290072 is an apocalyptic number.

7290072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7290072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10535850).

7290072 is an abundant number, since it is smaller than the sum of its proper divisors (13781628).

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

7290072 is a wasteful number, since it uses less digits than its factorization.

7290072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 7290072 is about 2700.0133333004. The cubic root of 7290072 is about 193.8997604518.

Adding to 7290072 its reverse (2700927), we get a palindrome (9990999).

The spelling of 7290072 in words is "seven million, two hundred ninety thousand, seventy-two".