1142232400 has 30 divisors (see below), whose sum is σ = 2744214302. Its totient is φ = 456892800.

The previous prime is 1142232379. The next prime is 1142232401. The reversal of 1142232400 is 42322411.

It can be written as a sum of positive squares in 3 ways, for example, as 74511424 + 1067720976 = 8632^2 + 32676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142232401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1427391 + ... + 1428190.

Almost surely, 2^1142232400 is an apocalyptic number.

1142232400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142232400 is an abundant number, since it is smaller than the sum of its proper divisors (1601981902).

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

1142232400 is a wasteful number, since it uses less digits than its factorization.

1142232400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855599 (or 2855588 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1142232400 is about 33796.9288545572. The cubic root of 1142232400 is about 1045.3253719993.

Adding to 1142232400 its reverse (42322411), we get a palindrome (1184554811).

The spelling of 1142232400 in words is "one billion, one hundred forty-two million, two hundred thirty-two thousand, four hundred".