194145028 has 72 divisors (see below), whose sum is σ = 433266624. Its totient is φ = 73944000.

The previous prime is 194145019. The next prime is 194145037. The reversal of 194145028 is 820541491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (194145019) and next prime (194145037).

It is a junction number, because it is equal to n+sod(n) for n = 194144984 and 194145002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1922178 + ... + 1922278.

It is an arithmetic number, because the mean of its divisors is an integer number (6017592).

Almost surely, 2^194145028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194145028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216633312).

194145028 is an abundant number, since it is smaller than the sum of its proper divisors (239121596).

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

194145028 is a wasteful number, since it uses less digits than its factorization.

194145028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 194145028 is about 13933.5935063429. The cubic root of 194145028 is about 579.0402558011.

It can be divided in two parts, 19414 and 5028, that added together give a palindrome (24442).

The spelling of 194145028 in words is "one hundred ninety-four million, one hundred forty-five thousand, twenty-eight".