152280820 has 24 divisors (see below), whose sum is σ = 336621600. Its totient is φ = 57706272.

The previous prime is 152280811. The next prime is 152280841. The reversal of 152280820 is 28082251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199990 + ... + 200749.

It is an arithmetic number, because the mean of its divisors is an integer number (14025900).

Almost surely, 2^152280820 is an apocalyptic number.

152280820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152280820 is an abundant number, since it is smaller than the sum of its proper divisors (184340780).

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

152280820 is a wasteful number, since it uses less digits than its factorization.

152280820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400767 (or 400765 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 152280820 is about 12340.2115054808. The cubic root of 152280820 is about 534.0087856896.

The spelling of 152280820 in words is "one hundred fifty-two million, two hundred eighty thousand, eight hundred twenty".