1142020434 has 32 divisors (see below), whose sum is σ = 2300316480. Its totient is φ = 377971200.

The previous prime is 1142020423. The next prime is 1142020447. The reversal of 1142020434 is 4340202411.

It is a self number, because there is not a number n which added to its sum of digits gives 1142020434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590449 + ... + 592379.

It is an arithmetic number, because the mean of its divisors is an integer number (71884890).

Almost surely, 2^1142020434 is an apocalyptic number.

1142020434 is an abundant number, since it is smaller than the sum of its proper divisors (1158296046).

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

1142020434 is a wasteful number, since it uses less digits than its factorization.

1142020434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1142020434 is about 33793.7928324123. The cubic root of 1142020434 is about 1045.2607070662.

Adding to 1142020434 its reverse (4340202411), we get a palindrome (5482222845).

The spelling of 1142020434 in words is "one billion, one hundred forty-two million, twenty thousand, four hundred thirty-four".