2150054442 has 20 divisors (see below), whose sum is σ = 4817714946. Its totient is φ = 716684760.

The previous prime is 2150054419. The next prime is 2150054449. The reversal of 2150054442 is 2444500512.

2150054442 is a `hidden beast` number, since 215 + 0 + 0 + 5 + 4 + 442 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1904536881 + 245517561 = 43641^2 + 15669^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2150054449) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6635809 + ... + 6636132.

Almost surely, 2^2150054442 is an apocalyptic number.

2150054442 is an abundant number, since it is smaller than the sum of its proper divisors (2667660504).

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

2150054442 is a wasteful number, since it uses less digits than its factorization.

2150054442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13271955 (or 13271946 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2150054442 is about 46368.6795369461. The cubic root of 2150054442 is about 1290.6737745772.

Adding to 2150054442 its reverse (2444500512), we get a palindrome (4594554954).

The spelling of 2150054442 in words is "two billion, one hundred fifty million, fifty-four thousand, four hundred forty-two".