213742482 has 32 divisors (see below), whose sum is σ = 433287360. Its totient is φ = 70287360.

The previous prime is 213742433. The next prime is 213742483. The reversal of 213742482 is 284247312.

It is a happy number.

It is a super-2 number, since 2×213742482² = 91371697223040648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213742483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150994 + ... + 152402.

It is an arithmetic number, because the mean of its divisors is an integer number (13540230).

Almost surely, 2^213742482 is an apocalyptic number.

213742482 is an abundant number, since it is smaller than the sum of its proper divisors (219544878).

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

213742482 is a wasteful number, since it uses less digits than its factorization.

213742482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738.

The product of its digits is 21504, while the sum is 33.

The square root of 213742482 is about 14619.9344047776. The cubic root of 213742482 is about 597.9023807573.

Adding to 213742482 its reverse (284247312), we get a palindrome (497989794).

The spelling of 213742482 in words is "two hundred thirteen million, seven hundred forty-two thousand, four hundred eighty-two".