2819240 has 16 divisors (see below), whose sum is σ = 6343380. Its totient is φ = 1127680.

The previous prime is 2819231. The next prime is 2819269. The reversal of 2819240 is 429182.

It can be written as a sum of positive squares in 2 ways, for example, as 2630884 + 188356 = 1622^2 + 434^2 .

It is a super-2 number, since 2×2819240² = 15896228355200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35201 + ... + 35280.

2^2819240 is an apocalyptic number.

2819240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2819240 is an abundant number, since it is smaller than the sum of its proper divisors (3524140).

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

2819240 is a wasteful number, since it uses less digits than its factorization.

2819240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70492 (or 70488 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2819240 is about 1679.0592604194. The cubic root of 2819240 is about 141.2680714081.

The spelling of 2819240 in words is "two million, eight hundred nineteen thousand, two hundred forty".