2788730 has 16 divisors (see below), whose sum is σ = 5736960. Its totient is φ = 956112.

The previous prime is 2788699. The next prime is 2788769. The reversal of 2788730 is 378872.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 19850 + ... + 19989.

It is an arithmetic number, because the mean of its divisors is an integer number (358560).

2^2788730 is an apocalyptic number.

2788730 is an abundant number, since it is smaller than the sum of its proper divisors (2948230).

2788730 is a wasteful number, since it uses less digits than its factorization.

2788730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39853.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 2788730 is about 1669.9491010207. The cubic root of 2788730 is about 140.7566178439.

The spelling of 2788730 in words is "two million, seven hundred eighty-eight thousand, seven hundred thirty".