194495040 has 112 divisors (see below), whose sum is σ = 686165760. Its totient is φ = 51863040.

The previous prime is 194495027. The next prime is 194495053. The reversal of 194495040 is 40594491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (194495027) and next prime (194495053).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 194494986 and 194495004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2616 + ... + 19895.

It is an arithmetic number, because the mean of its divisors is an integer number (6126480).

Almost surely, 2^194495040 is an apocalyptic number.

194495040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194495040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343082880).

194495040 is an abundant number, since it is smaller than the sum of its proper divisors (491670720).

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

194495040 is a wasteful number, since it uses less digits than its factorization.

194495040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22537 (or 22521 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 194495040 is about 13946.1478552323. The cubic root of 194495040 is about 579.3880187898.

The spelling of 194495040 in words is "one hundred ninety-four million, four hundred ninety-five thousand, forty".