7240090 has 64 divisors (see below), whose sum is σ = 15748992. Its totient is φ = 2361600.

The previous prime is 7240073. The next prime is 7240091. The reversal of 7240090 is 900427.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (7240091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87189 + ... + 87271.

It is an arithmetic number, because the mean of its divisors is an integer number (246078).

Almost surely, 2^7240090 is an apocalyptic number.

7240090 is an abundant number, since it is smaller than the sum of its proper divisors (8508902).

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

7240090 is a wasteful number, since it uses less digits than its factorization.

7240090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7240090 is about 2690.7415334811. The cubic root of 7240090 is about 193.4556070221.

The spelling of 7240090 in words is "seven million, two hundred forty thousand, ninety".