1224742020 has 48 divisors (see below), whose sum is σ = 3493990080. Its totient is φ = 320434816.

The previous prime is 1224742003. The next prime is 1224742021. The reversal of 1224742020 is 202474221.

1224742020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1224742021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189390 + ... + 195749.

It is an arithmetic number, because the mean of its divisors is an integer number (72791460).

Almost surely, 2^1224742020 is an apocalyptic number.

1224742020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1224742020 is an abundant number, since it is smaller than the sum of its proper divisors (2269248060).

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

1224742020 is a wasteful number, since it uses less digits than its factorization.

1224742020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385204 (or 385202 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 1224742020 is about 34996.3143773741. The cubic root of 1224742020 is about 1069.9123636264.

The spelling of 1224742020 in words is "one billion, two hundred twenty-four million, seven hundred forty-two thousand, twenty".