1426231100 has 72 divisors (see below), whose sum is σ = 3572250528. Its totient is φ = 484128000.

The previous prime is 1426231073. The next prime is 1426231109. The reversal of 1426231100 is 11326241.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426231109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60614 + ... + 80786.

Almost surely, 2^1426231100 is an apocalyptic number.

1426231100 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 1426231100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1786125264).

1426231100 is an abundant number, since it is smaller than the sum of its proper divisors (2146019428).

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

1426231100 is a wasteful number, since it uses less digits than its factorization.

1426231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20295 (or 20288 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1426231100 is about 37765.4749738435. The cubic root of 1426231100 is about 1125.6325266024.

Adding to 1426231100 its reverse (11326241), we get a palindrome (1437557341).

The spelling of 1426231100 in words is "one billion, four hundred twenty-six million, two hundred thirty-one thousand, one hundred".