1224028988 has 24 divisors (see below), whose sum is σ = 2636370912. Its totient is φ = 484231104.

The previous prime is 1224028987. The next prime is 1224029003. The reversal of 1224028988 is 8898204221.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224028987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1680995 + ... + 1681722.

It is an arithmetic number, because the mean of its divisors is an integer number (109848788).

Almost surely, 2^1224028988 is an apocalyptic number.

It is an amenable number.

1224028988 is an abundant number, since it is smaller than the sum of its proper divisors (1412341924).

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

1224028988 is a wasteful number, since it uses less digits than its factorization.

1224028988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362741 (or 3362739 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 1224028988 is about 34986.1256500345. The cubic root of 1224028988 is about 1069.7046927223.

The spelling of 1224028988 in words is "one billion, two hundred twenty-four million, twenty-eight thousand, nine hundred eighty-eight".