1197859442 has 16 divisors (see below), whose sum is σ = 2001729240. Its totient is φ = 533793792.

The previous prime is 1197859417. The next prime is 1197859463. The reversal of 1197859442 is 2449587911.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 974625961 + 223233481 = 31219^2 + 14941^2 .

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, 793583 + ... + 795090.

Almost surely, 2^1197859442 is an apocalyptic number.

1197859442 is a deficient number, since it is larger than the sum of its proper divisors (803869798).

1197859442 is a wasteful number, since it uses less digits than its factorization.

1197859442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588717.

The product of its digits is 725760, while the sum is 50.

The square root of 1197859442 is about 34610.1060674480. The cubic root of 1197859442 is about 1062.0263369136.

The spelling of 1197859442 in words is "one billion, one hundred ninety-seven million, eight hundred fifty-nine thousand, four hundred forty-two".