1042200442 has 4 divisors (see below), whose sum is σ = 1563300666. Its totient is φ = 521100220.

The previous prime is 1042200371. The next prime is 1042200451. The reversal of 1042200442 is 2440022401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2440022401 = 43 ⋅56744707.

It can be written as a sum of positive squares in only one way, i.e., 983386881 + 58813561 = 31359^2 + 7669^2 .

It is a super-2 number, since 2×1042200442² = 2172363522609990728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260550109 + ... + 260550112.

Almost surely, 2^1042200442 is an apocalyptic number.

1042200442 is a deficient number, since it is larger than the sum of its proper divisors (521100224).

1042200442 is an equidigital number, since it uses as much as digits as its factorization.

1042200442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521100223.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1042200442 is about 32283.1293712366. The cubic root of 1042200442 is about 1013.8734512634.

Adding to 1042200442 its reverse (2440022401), we get a palindrome (3482222843).

The spelling of 1042200442 in words is "one billion, forty-two million, two hundred thousand, four hundred forty-two".