213428152 has 16 divisors (see below), whose sum is σ = 457346160. Its totient is φ = 91469184.

The previous prime is 213428147. The next prime is 213428167. The reversal of 213428152 is 251824312.

It is a super-2 number, since 2×213428152² = 91103152132270208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 213428152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1905553 + ... + 1905664.

It is an arithmetic number, because the mean of its divisors is an integer number (28584135).

Almost surely, 2^213428152 is an apocalyptic number.

It is an amenable number.

213428152 is an abundant number, since it is smaller than the sum of its proper divisors (243918008).

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

213428152 is a wasteful number, since it uses less digits than its factorization.

213428152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811230 (or 3811226 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 213428152 is about 14609.1804013778. The cubic root of 213428152 is about 597.6091449336.

Subtracting from 213428152 its product of digits (3840), we obtain a palindrome (213424312).

The spelling of 213428152 in words is "two hundred thirteen million, four hundred twenty-eight thousand, one hundred fifty-two".