2987220 has 24 divisors (see below), whose sum is σ = 8364384. Its totient is φ = 796576.

The previous prime is 2987209. The next prime is 2987251. The reversal of 2987220 is 227892.

2987220 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2² + 9³ + 8⁷ + 7⁷ + 2⁸ + 2¹⁶ + 0 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24834 + ... + 24953.

It is an arithmetic number, because the mean of its divisors is an integer number (348516).

2^2987220 is an apocalyptic number.

2987220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2987220 is an abundant number, since it is smaller than the sum of its proper divisors (5377164).

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

2987220 is a wasteful number, since it uses less digits than its factorization.

2987220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49799 (or 49797 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2987220 is about 1728.3576018868. The cubic root of 2987220 is about 144.0198660863.

It can be divided in two parts, 29872 and 20, that added together give a palindrome (29892).

The spelling of 2987220 in words is "two million, nine hundred eighty-seven thousand, two hundred twenty".