1005442194 has 16 divisors (see below), whose sum is σ = 2098314432. Its totient is φ = 320575728.

The previous prime is 1005442177. The next prime is 1005442201. The reversal of 1005442194 is 4912445001.

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, 3642769 + ... + 3643044.

It is an arithmetic number, because the mean of its divisors is an integer number (131144652).

Almost surely, 2^1005442194 is an apocalyptic number.

1005442194 is an abundant number, since it is smaller than the sum of its proper divisors (1092872238).

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

1005442194 is a wasteful number, since it uses less digits than its factorization.

1005442194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285841.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1005442194 is about 31708.7084883633. The cubic root of 1005442194 is about 1001.8107837497.

Adding to 1005442194 its reverse (4912445001), we get a palindrome (5917887195).

The spelling of 1005442194 in words is "one billion, five million, four hundred forty-two thousand, one hundred ninety-four".