2690220 has 48 divisors (see below), whose sum is σ = 8114400. Its totient is φ = 662016.

The previous prime is 2690201. The next prime is 2690239. The reversal of 2690220 is 220962.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2690201) and next prime (2690239).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (169050).

2^2690220 is an apocalyptic number.

2690220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2690220 is an abundant number, since it is smaller than the sum of its proper divisors (5424180).

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

2690220 is a wasteful number, since it uses less digits than its factorization.

2690220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474 (or 3472 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2690220 is about 1640.1890134981. The cubic root of 2690220 is about 139.0793329369.

The spelling of 2690220 in words is "two million, six hundred ninety thousand, two hundred twenty".