1143021400 has 48 divisors (see below), whose sum is σ = 2659751640. Its totient is φ = 456825600.

The previous prime is 1143021331. The next prime is 1143021419. The reversal of 1143021400 is 41203411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452140 + ... + 454660.

Almost surely, 2^1143021400 is an apocalyptic number.

1143021400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143021400 is an abundant number, since it is smaller than the sum of its proper divisors (1516730240).

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

1143021400 is a wasteful number, since it uses less digits than its factorization.

1143021400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4804 (or 4795 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1143021400 is about 33808.5994977609. The cubic root of 1143021400 is about 1045.5660036750.

Adding to 1143021400 its reverse (41203411), we get a palindrome (1184224811).

The spelling of 1143021400 in words is "one billion, one hundred forty-three million, twenty-one thousand, four hundred".