1142378700 has 144 divisors (see below), whose sum is σ = 3432842784. Its totient is φ = 293068800.

The previous prime is 1142378693. The next prime is 1142378707. The reversal of 1142378700 is 78732411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1142378693) and next prime (1142378707).

It is not an unprimeable number, because it can be changed into a prime (1142378707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1076170 + ... + 1077230.

It is an arithmetic number, because the mean of its divisors is an integer number (23839186).

Almost surely, 2^1142378700 is an apocalyptic number.

1142378700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142378700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716421392).

1142378700 is an abundant number, since it is smaller than the sum of its proper divisors (2290464084).

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

1142378700 is a wasteful number, since it uses less digits than its factorization.

1142378700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 1142378700 is about 33799.0931831018. The cubic root of 1142378700 is about 1045.3699993954.

The spelling of 1142378700 in words is "one billion, one hundred forty-two million, three hundred seventy-eight thousand, seven hundred".