1121426432 has 88 divisors (see below), whose sum is σ = 2589045600. Its totient is φ = 475545600.

The previous prime is 1121426431. The next prime is 1121426461. The reversal of 1121426432 is 2346241211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121426431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723194 + ... + 724742.

Almost surely, 2^1121426432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121426432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1294522800).

1121426432 is an abundant number, since it is smaller than the sum of its proper divisors (1467619168).

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

1121426432 is a wasteful number, since it uses less digits than its factorization.

1121426432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 1659 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 1121426432 is about 33487.7056843254. The cubic root of 1121426432 is about 1038.9395107013.

Adding to 1121426432 its reverse (2346241211), we get a palindrome (3467667643).

The spelling of 1121426432 in words is "one billion, one hundred twenty-one million, four hundred twenty-six thousand, four hundred thirty-two".