3290920 has 32 divisors (see below), whose sum is σ = 7662600. Its totient is φ = 1270528.

The previous prime is 3290887. The next prime is 3290927. The reversal of 3290920 is 290923.

It can be written as a sum of positive squares in 4 ways, for example, as 1758276 + 1532644 = 1326^2 + 1238^2 .

It is not an unprimeable number, because it can be changed into a prime (3290927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259 + ... + 2578.

Almost surely, 2^3290920 is an apocalyptic number.

It is an amenable number.

3290920 is an abundant number, since it is smaller than the sum of its proper divisors (4371680).

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

3290920 is a wasteful number, since it uses less digits than its factorization.

3290920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877 (or 2873 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 3290920 is about 1814.0893032042. The cubic root of 3290920 is about 148.7438808301.

Subtracting from 3290920 its sum of digits (25), we obtain a triangular number (3290895 = T₂₅₆₅).

The spelling of 3290920 in words is "three million, two hundred ninety thousand, nine hundred twenty".