184242920 has 48 divisors (see below), whose sum is σ = 428439780. Its totient is φ = 71304960.

The previous prime is 184242913. The next prime is 184242953. The reversal of 184242920 is 29242481.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 181010116 + 3232804 = 13454^2 + 1798^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36044 + ... + 40836.

Almost surely, 2^184242920 is an apocalyptic number.

184242920 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 184242920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214219890).

184242920 is an abundant number, since it is smaller than the sum of its proper divisors (244196860).

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

184242920 is a wasteful number, since it uses less digits than its factorization.

184242920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4866 (or 4831 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 184242920 is about 13573.6111628409. The cubic root of 184242920 is about 569.0235874099.

The spelling of 184242920 in words is "one hundred eighty-four million, two hundred forty-two thousand, nine hundred twenty".