1042220142 has 16 divisors (see below), whose sum is σ = 2316044880. Its totient is φ = 347406696.

The previous prime is 1042220117. The next prime is 1042220209. The reversal of 1042220142 is 2410222401.

1042220142 is a `hidden beast` number, since 1 + 0 + 422 + 201 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9650133 + ... + 9650240.

It is an arithmetic number, because the mean of its divisors is an integer number (144752805).

Almost surely, 2^1042220142 is an apocalyptic number.

1042220142 is an abundant number, since it is smaller than the sum of its proper divisors (1273824738).

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

1042220142 is a wasteful number, since it uses less digits than its factorization.

1042220142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19300384 (or 19300378 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1042220142 is about 32283.4344827188. The cubic root of 1042220142 is about 1013.8798394079.

Adding to 1042220142 its reverse (2410222401), we get a palindrome (3452442543).

The spelling of 1042220142 in words is "one billion, forty-two million, two hundred twenty thousand, one hundred forty-two".