1152205400 has 24 divisors (see below), whose sum is σ = 2678878020. Its totient is φ = 460882080.

The previous prime is 1152205381. The next prime is 1152205433. The reversal of 1152205400 is 45022511.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2880314 + ... + 2880713.

Almost surely, 2^1152205400 is an apocalyptic number.

1152205400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1152205400 is an abundant number, since it is smaller than the sum of its proper divisors (1526672620).

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

1152205400 is a wasteful number, since it uses less digits than its factorization.

1152205400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5761043 (or 5761034 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1152205400 is about 33944.1511898589. The cubic root of 1152205400 is about 1048.3588572545.

Adding to 1152205400 its reverse (45022511), we get a palindrome (1197227911).

The spelling of 1152205400 in words is "one billion, one hundred fifty-two million, two hundred five thousand, four hundred".