4280990 has 32 divisors (see below), whose sum is σ = 9192960. Its totient is φ = 1403424.

The previous prime is 4280971. The next prime is 4280999. The reversal of 4280990 is 990824.

4280990 = T₇₄₈ + T₇₄₉ + ... + T₇₆₂.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4280999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281 + ... + 2939.

It is an arithmetic number, because the mean of its divisors is an integer number (287280).

Almost surely, 2^4280990 is an apocalyptic number.

4280990 is an abundant number, since it is smaller than the sum of its proper divisors (4911970).

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

4280990 is a wasteful number, since it uses less digits than its factorization.

4280990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 4280990 is about 2069.0553400042. The cubic root of 4280990 is about 162.3733450959.

The spelling of 4280990 in words is "four million, two hundred eighty thousand, nine hundred ninety".