21450162 has 32 divisors (see below), whose sum is σ = 44104320. Its totient is φ = 6952320.

The previous prime is 21450161. The next prime is 21450179. The reversal of 21450162 is 26105412.

It is not an unprimeable number, because it can be changed into a prime (21450161) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37414 + ... + 37982.

It is an arithmetic number, because the mean of its divisors is an integer number (1378260).

Almost surely, 2^21450162 is an apocalyptic number.

21450162 is an abundant number, since it is smaller than the sum of its proper divisors (22654158).

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

21450162 is a wasteful number, since it uses less digits than its factorization.

21450162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 21450162 is about 4631.4319599882. The cubic root of 21450162 is about 277.8498663152.

Adding to 21450162 its reverse (26105412), we get a palindrome (47555574).

It can be divided in two parts, 21450 and 162, that added together give a palindrome (21612).

The spelling of 21450162 in words is "twenty-one million, four hundred fifty thousand, one hundred sixty-two".