2197169394 has 32 divisors (see below), whose sum is σ = 5037305856. Its totient is φ = 625862160.

The previous prime is 2197169393. The next prime is 2197169411. The reversal of 2197169394 is 4939617912.

It is not an unprimeable number, because it can be changed into a prime (2197169393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65122 + ... + 92925.

It is an arithmetic number, because the mean of its divisors is an integer number (157415808).

Almost surely, 2^2197169394 is an apocalyptic number.

2197169394 is an abundant number, since it is smaller than the sum of its proper divisors (2840136462).

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

2197169394 is a wasteful number, since it uses less digits than its factorization.

2197169394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158390.

The product of its digits is 734832, while the sum is 51.

The square root of 2197169394 is about 46873.9735247611. The cubic root of 2197169394 is about 1300.0334101867.

The spelling of 2197169394 in words is "two billion, one hundred ninety-seven million, one hundred sixty-nine thousand, three hundred ninety-four".