2153873340 has 36 divisors (see below), whose sum is σ = 6533416344. Its totient is φ = 574366176.

The previous prime is 2153873291. The next prime is 2153873347. The reversal of 2153873340 is 433783512.

2153873340 is a `hidden beast` number, since 21 + 538 + 73 + 34 + 0 = 666.

2153873340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 2153873295 and 2153873304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153873347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5982802 + ... + 5983161.

Almost surely, 2^2153873340 is an apocalyptic number.

2153873340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153873340 is an abundant number, since it is smaller than the sum of its proper divisors (4379543004).

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

2153873340 is a wasteful number, since it uses less digits than its factorization.

2153873340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11965978 (or 11965973 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 2153873340 is about 46409.8409822744. The cubic root of 2153873340 is about 1291.4374817700.

The spelling of 2153873340 in words is "two billion, one hundred fifty-three million, eight hundred seventy-three thousand, three hundred forty".