152023220 has 24 divisors (see below), whose sum is σ = 330258600. Its totient is φ = 58712192.

The previous prime is 152023211. The next prime is 152023241. The reversal of 152023220 is 22320251.

It can be written as a sum of positive squares in 4 ways, for example, as 14945956 + 137077264 = 3866^2 + 11708^2 .

It is a super-2 number, since 2×152023220² = 46222118838336800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130475 + ... + 131634.

It is an arithmetic number, because the mean of its divisors is an integer number (13760775).

Almost surely, 2^152023220 is an apocalyptic number.

152023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152023220 is an abundant number, since it is smaller than the sum of its proper divisors (178235380).

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

152023220 is a wasteful number, since it uses less digits than its factorization.

152023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262147 (or 262145 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 152023220 is about 12329.7696653263. The cubic root of 152023220 is about 533.7075039249.

Adding to 152023220 its reverse (22320251), we get a palindrome (174343471).

The spelling of 152023220 in words is "one hundred fifty-two million, twenty-three thousand, two hundred twenty".