1423266240 has 224 divisors, whose sum is σ = 5024664576. Its totient is φ = 338391040.

The previous prime is 1423266239. The next prime is 1423266253. The reversal of 1423266240 is 426623241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1423266198 and 1423266207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 558409 + ... + 560951.

Almost surely, 2^1423266240 is an apocalyptic number.

1423266240 is a gapful number since it is divisible by the number (10) 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 1423266240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2512332288).

1423266240 is an abundant number, since it is smaller than the sum of its proper divisors (3601398336).

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

1423266240 is a wasteful number, since it uses less digits than its factorization.

1423266240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627 (or 2617 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1423266240 is about 37726.2009749193. The cubic root of 1423266240 is about 1124.8519943563.

Adding to 1423266240 its reverse (426623241), we get a palindrome (1849889481).

The spelling of 1423266240 in words is "one billion, four hundred twenty-three million, two hundred sixty-six thousand, two hundred forty".