7290045 has 24 divisors (see below), whose sum is σ = 14441856. Its totient is φ = 3332448.

The previous prime is 7290043. The next prime is 7290061. The reversal of 7290045 is 5400927.

It is not a de Polignac number, because 7290045 - 2¹ = 7290043 is a prime.

It is a super-2 number, since 2×7290045² = 106289512204050, which contains 22 as substring.

7290045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7290043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11257 + ... + 11886.

It is an arithmetic number, because the mean of its divisors is an integer number (601744).

Almost surely, 2^7290045 is an apocalyptic number.

It is an amenable number.

7290045 is a deficient number, since it is larger than the sum of its proper divisors (7151811).

7290045 is a wasteful number, since it uses less digits than its factorization.

7290045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23161 (or 23158 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 7290045 is about 2700.0083333205. The cubic root of 7290045 is about 193.8995210714.

The spelling of 7290045 in words is "seven million, two hundred ninety thousand, forty-five".