1142405300 has 18 divisors (see below), whose sum is σ = 2479019718. Its totient is φ = 456962080.

The previous prime is 1142405293. The next prime is 1142405317. The reversal of 1142405300 is 35042411.

It can be written as a sum of positive squares in 3 ways, for example, as 125305636 + 1017099664 = 11194^2 + 31892^2 .

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, 5711927 + ... + 5712126.

Almost surely, 2^1142405300 is an apocalyptic number.

1142405300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142405300 is an abundant number, since it is smaller than the sum of its proper divisors (1336614418).

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

1142405300 is a wasteful number, since it uses less digits than its factorization.

1142405300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11424067 (or 11424060 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1142405300 is about 33799.4866824927. The cubic root of 1142405300 is about 1045.3781130580.

Adding to 1142405300 its reverse (35042411), we get a palindrome (1177447711).

The spelling of 1142405300 in words is "one billion, one hundred forty-two million, four hundred five thousand, three hundred".