1225014784 has 80 divisors (see below), whose sum is σ = 2818569600. Its totient is φ = 521017344.

The previous prime is 1225014773. The next prime is 1225014803. The reversal of 1225014784 is 4874105221.

It is a super-2 number, since 2×1225014784² = 3001322442037133312, which contains 22 as substring.

It is a congruent number.

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, 496947 + ... + 499405.

It is an arithmetic number, because the mean of its divisors is an integer number (35232120).

Almost surely, 2^1225014784 is an apocalyptic number.

1225014784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225014784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409284800).

1225014784 is an abundant number, since it is smaller than the sum of its proper divisors (1593554816).

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

1225014784 is an equidigital number, since it uses as much as digits as its factorization.

1225014784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 1225014784 is about 35000.2111993628. The cubic root of 1225014784 is about 1069.9917849545.

The spelling of 1225014784 in words is "one billion, two hundred twenty-five million, fourteen thousand, seven hundred eighty-four".