22152030 has 16 divisors (see below), whose sum is σ = 53164944. Its totient is φ = 5907200.

The previous prime is 22152029. The next prime is 22152061. The reversal of 22152030 is 3025122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369171 + ... + 369230.

It is an arithmetic number, because the mean of its divisors is an integer number (3322809).

Almost surely, 2^22152030 is an apocalyptic number.

22152030 is an abundant number, since it is smaller than the sum of its proper divisors (31012914).

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

22152030 is a wasteful number, since it uses less digits than its factorization.

22152030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738411.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 22152030 is about 4706.5943101143. The cubic root of 22152030 is about 280.8478974877.

Adding to 22152030 its reverse (3025122), we get a palindrome (25177152).

The spelling of 22152030 in words is "twenty-two million, one hundred fifty-two thousand, thirty".