2721250 has 40 divisors (see below), whose sum is σ = 5848128. Its totient is φ = 930000.

The previous prime is 2721247. The next prime is 2721259. The reversal of 2721250 is 521272.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2721259) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8595 + ... + 8905.

2^2721250 is an apocalyptic number.

2721250 is an abundant number, since it is smaller than the sum of its proper divisors (3126878).

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

2721250 is an equidigital number, since it uses as much as digits as its factorization.

2721250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2721250 is about 1649.6211686324. The cubic root of 2721250 is about 139.6120210336.

The spelling of 2721250 in words is "two million, seven hundred twenty-one thousand, two hundred fifty".