152404220 has 24 divisors (see below), whose sum is σ = 320970384. Its totient is φ = 60786176.

The previous prime is 152404211. The next prime is 152404237. The reversal of 152404220 is 22404251.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 152404192 and 152404201.

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, 3734 + ... + 17853.

It is an arithmetic number, because the mean of its divisors is an integer number (13373766).

Almost surely, 2^152404220 is an apocalyptic number.

152404220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152404220 is an abundant number, since it is smaller than the sum of its proper divisors (168566164).

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

152404220 is a wasteful number, since it uses less digits than its factorization.

152404220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21949 (or 21947 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 152404220 is about 12345.2104072794. The cubic root of 152404220 is about 534.1529905266.

Adding to 152404220 its reverse (22404251), we get a palindrome (174808471).

The spelling of 152404220 in words is "one hundred fifty-two million, four hundred four thousand, two hundred twenty".