7390090 has 24 divisors (see below), whose sum is σ = 13762980. Its totient is φ = 2856960.

The previous prime is 7390081. The next prime is 7390111. The reversal of 7390090 is 900937.

7390090 is a nontrivial binomial coefficient, being equal to C(3845, 2).

It can be written as a sum of positive squares in 2 ways, for example, as 7273809 + 116281 = 2697^2 + 341^2 .

It is a super-3 number, since 3×7390090³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9226 + ... + 9994.

Almost surely, 2^7390090 is an apocalyptic number.

7390090 is the 3844-th triangular number.

7390090 is the 1282-nd centered nonagonal number.

7390090 is a deficient number, since it is larger than the sum of its proper divisors (6372890).

7390090 is a wasteful number, since it uses less digits than its factorization.

7390090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 7390090 is about 2718.4719972808. The cubic root of 7390090 is about 194.7824881272.

The spelling of 7390090 in words is "seven million, three hundred ninety thousand, ninety".