2421788 has 12 divisors (see below), whose sum is σ = 4341792. Its totient is φ = 1181280.

The previous prime is 2421781. The next prime is 2421791. The reversal of 2421788 is 8871242.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7220 + ... + 7547.

It is an arithmetic number, because the mean of its divisors is an integer number (361816).

2^2421788 is an apocalyptic number.

It is an amenable number.

2421788 is a deficient number, since it is larger than the sum of its proper divisors (1920004).

2421788 is a wasteful number, since it uses less digits than its factorization.

2421788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14812 (or 14810 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

The square root of 2421788 is about 1556.2094974649. The cubic root of 2421788 is about 134.2905258144.

It can be divided in two parts, 24 and 21788, that added together give a palindrome (21812).

The spelling of 2421788 in words is "two million, four hundred twenty-one thousand, seven hundred eighty-eight".