1331224488 has 48 divisors (see below), whose sum is σ = 3933165600. Its totient is φ = 403401120.

The previous prime is 1331224483. The next prime is 1331224501. The reversal of 1331224488 is 8844221331.

It is a happy number.

1331224488 is a `hidden beast` number, since 1 + 331 + 2 + 244 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1331224481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 839628 + ... + 841211.

It is an arithmetic number, because the mean of its divisors is an integer number (81940950).

Almost surely, 2^1331224488 is an apocalyptic number.

1331224488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1331224488 is an abundant number, since it is smaller than the sum of its proper divisors (2601941112).

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

1331224488 is a wasteful number, since it uses less digits than its factorization.

1331224488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680862 (or 1680855 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 1331224488 is about 36485.9491859538. The cubic root of 1331224488 is about 1100.0618389478.

The spelling of 1331224488 in words is "one billion, three hundred thirty-one million, two hundred twenty-four thousand, four hundred eighty-eight".