805197492 has 36 divisors (see below), whose sum is σ = 2220394176. Its totient is φ = 243999120.

The previous prime is 805197487. The next prime is 805197493. The reversal of 805197492 is 294791508.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×805197492² = 1296686002246180128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805197493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1016268 + ... + 1017059.

It is an arithmetic number, because the mean of its divisors is an integer number (61677616).

Almost surely, 2^805197492 is an apocalyptic number.

It is an amenable number.

805197492 is an abundant number, since it is smaller than the sum of its proper divisors (1415196684).

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

805197492 is a wasteful number, since it uses less digits than its factorization.

805197492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033348 (or 2033343 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 805197492 is about 28376.0020439808. The cubic root of 805197492 is about 930.3238137048.

The spelling of 805197492 in words is "eight hundred five million, one hundred ninety-seven thousand, four hundred ninety-two".