1224381396 has 48 divisors (see below), whose sum is σ = 3334496256. Its totient is φ = 342379104.

The previous prime is 1224381373. The next prime is 1224381397. The reversal of 1224381396 is 6931834221.

1224381396 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×1224381396⁴ (a number of 37 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (39) 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 (1224381397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151116 + ... + 159011.

It is an arithmetic number, because the mean of its divisors is an integer number (69468672).

Almost surely, 2^1224381396 is an apocalyptic number.

It is an amenable number.

1224381396 is an abundant number, since it is smaller than the sum of its proper divisors (2110114860).

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

1224381396 is a wasteful number, since it uses less digits than its factorization.

1224381396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310188 (or 310186 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 1224381396 is about 34991.1616840596. The cubic root of 1224381396 is about 1069.8073417943.

It can be divided in two parts, 12243 and 81396, that added together give a palindrome (93639).

The spelling of 1224381396 in words is "one billion, two hundred twenty-four million, three hundred eighty-one thousand, three hundred ninety-six".