181404852 has 12 divisors (see below), whose sum is σ = 423278016. Its totient is φ = 60468280.

The previous prime is 181404829. The next prime is 181404857. The reversal of 181404852 is 258404181.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181404857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7558524 + ... + 7558547.

It is an arithmetic number, because the mean of its divisors is an integer number (35273168).

Almost surely, 2^181404852 is an apocalyptic number.

181404852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

181404852 is an abundant number, since it is smaller than the sum of its proper divisors (241873164).

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

181404852 is a wasteful number, since it uses less digits than its factorization.

181404852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15117078 (or 15117076 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 181404852 is about 13468.6618488995. The cubic root of 181404852 is about 566.0867193892.

The spelling of 181404852 in words is "one hundred eighty-one million, four hundred four thousand, eight hundred fifty-two".