7439090 has 16 divisors (see below), whose sum is σ = 13433472. Its totient is φ = 2966064.

The previous prime is 7439087. The next prime is 7439093. The reversal of 7439090 is 909347.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7439087) and next prime (7439093).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7439093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2657 + ... + 4683.

It is an arithmetic number, because the mean of its divisors is an integer number (839592).

Almost surely, 2^7439090 is an apocalyptic number.

7439090 is a deficient number, since it is larger than the sum of its proper divisors (5994382).

7439090 is a wasteful number, since it uses less digits than its factorization.

7439090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 7439090 is about 2727.4695232028. The cubic root of 7439090 is about 195.2120419708.

The spelling of 7439090 in words is "seven million, four hundred thirty-nine thousand, ninety".