2152206342 has 128 divisors (see below), whose sum is σ = 5914944000. Its totient is φ = 570291840.

The previous prime is 2152206337. The next prime is 2152206359. The reversal of 2152206342 is 2436022512.

It is a happy number.

2152206342 is a `hidden beast` number, since 2 + 1 + 5 + 2 + 20 + 634 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 139384 + ... + 154052.

It is an arithmetic number, because the mean of its divisors is an integer number (46210500).

Almost surely, 2^2152206342 is an apocalyptic number.

2152206342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2152206342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2957472000).

2152206342 is an abundant number, since it is smaller than the sum of its proper divisors (3762737658).

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

2152206342 is a wasteful number, since it uses less digits than its factorization.

2152206342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14723 (or 14717 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2152206342 is about 46391.8779744903. The cubic root of 2152206342 is about 1291.1042248891.

Adding to 2152206342 its reverse (2436022512), we get a palindrome (4588228854).

The spelling of 2152206342 in words is "two billion, one hundred fifty-two million, two hundred six thousand, three hundred forty-two".