1142202000 has 80 divisors (see below), whose sum is σ = 3682478592. Its totient is φ = 304585600.

The previous prime is 1142201999. The next prime is 1142202023. The reversal of 1142202000 is 2022411.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89184 + ... + 101183.

Almost surely, 2^1142202000 is an apocalyptic number.

1142202000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142202000 is an abundant number, since it is smaller than the sum of its proper divisors (2540276592).

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

1142202000 is a wasteful number, since it uses less digits than its factorization.

1142202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190393 (or 190377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1142202000 is about 33796.4791065578. The cubic root of 1142202000 is about 1045.3160982960.

Adding to 1142202000 its reverse (2022411), we get a palindrome (1144224411).

The spelling of 1142202000 in words is "one billion, one hundred forty-two million, two hundred two thousand".