1142000420 has 36 divisors (see below), whose sum is σ = 2636044572. Its totient is φ = 415272000.

The previous prime is 1142000417. The next prime is 1142000437. The reversal of 1142000420 is 240002411.

It can be written as a sum of positive squares in 2 ways, for example, as 136983616 + 1005016804 = 11704^2 + 31702^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1142000395 and 1142000404.

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, 233531 + ... + 238370.

Almost surely, 2^1142000420 is an apocalyptic number.

1142000420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142000420 is an abundant number, since it is smaller than the sum of its proper divisors (1494044152).

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

1142000420 is a wasteful number, since it uses less digits than its factorization.

1142000420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471932 (or 471919 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1142000420 is about 33793.4967116456. The cubic root of 1142000420 is about 1045.2546009379.

Adding to 1142000420 its reverse (240002411), we get a palindrome (1382002831).

The spelling of 1142000420 in words is "one billion, one hundred forty-two million, four hundred twenty", and thus it is an aban number.