2113537392 has 120 divisors (see below), whose sum is σ = 6049661904. Its totient is φ = 688576512.

The previous prime is 2113537351. The next prime is 2113537397. The reversal of 2113537392 is 2937353112.

It is a happy number.

2113537392 is a `hidden beast` number, since 2 + 113 + 537 + 3 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113537397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3563848 + ... + 3564440.

Almost surely, 2^2113537392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113537392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3024830952).

2113537392 is an abundant number, since it is smaller than the sum of its proper divisors (3936124512).

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

2113537392 is a wasteful number, since it uses less digits than its factorization.

2113537392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127 (or 1118 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 2113537392 is about 45973.2247291834. The cubic root of 2113537392 is about 1283.3249719963.

The spelling of 2113537392 in words is "two billion, one hundred thirteen million, five hundred thirty-seven thousand, three hundred ninety-two".