194465540 has 12 divisors (see below), whose sum is σ = 408377676. Its totient is φ = 77786208.

The previous prime is 194465519. The next prime is 194465591. The reversal of 194465540 is 45564491.

194465540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 107453956 + 87011584 = 10366^2 + 9328^2 .

It is a junction number, because it is equal to n+sod(n) for n = 194465494 and 194465503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4861619 + ... + 4861658.

It is an arithmetic number, because the mean of its divisors is an integer number (34031473).

Almost surely, 2^194465540 is an apocalyptic number.

194465540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194465540 is an abundant number, since it is smaller than the sum of its proper divisors (213912136).

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

194465540 is a wasteful number, since it uses less digits than its factorization.

194465540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9723286 (or 9723284 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 194465540 is about 13945.0901753987. The cubic root of 194465540 is about 579.3587244510.

The spelling of 194465540 in words is "one hundred ninety-four million, four hundred sixty-five thousand, five hundred forty".