2801240 has 32 divisors (see below), whose sum is σ = 6788880. Its totient is φ = 1034112.

The previous prime is 2801237. The next prime is 2801251. The reversal of 2801240 is 421082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2174 + ... + 3213.

2^2801240 is an apocalyptic number.

2801240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2801240 is an abundant number, since it is smaller than the sum of its proper divisors (3987640).

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

2801240 is a wasteful number, since it uses less digits than its factorization.

2801240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411 (or 5407 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2801240 is about 1673.6905329242. The cubic root of 2801240 is about 140.9667778812.

The spelling of 2801240 in words is "two million, eight hundred one thousand, two hundred forty".