253486194 has 64 divisors (see below), whose sum is σ = 571146240. Its totient is φ = 74468160.

The previous prime is 253486157. The next prime is 253486241. The reversal of 253486194 is 491684352.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190359 + ... + 191685.

It is an arithmetic number, because the mean of its divisors is an integer number (8924160).

Almost surely, 2^253486194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253486194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285573120).

253486194 is an abundant number, since it is smaller than the sum of its proper divisors (317660046).

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

253486194 is a wasteful number, since it uses less digits than its factorization.

253486194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455.

The product of its digits is 207360, while the sum is 42.

The square root of 253486194 is about 15921.2497625029. The cubic root of 253486194 is about 632.8752377720.

The spelling of 253486194 in words is "two hundred fifty-three million, four hundred eighty-six thousand, one hundred ninety-four".