254161728 has 84 divisors (see below), whose sum is σ = 736180900. Its totient is φ = 83828736.

The previous prime is 254161709. The next prime is 254161741. The reversal of 254161728 is 827161452.

It can be written as a sum of positive squares in 2 ways, for example, as 151585344 + 102576384 = 12312^2 + 10128^2 .

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 = 254161692 and 254161701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53598 + ... + 58146.

Almost surely, 2^254161728 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 254161728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368090450).

254161728 is an abundant number, since it is smaller than the sum of its proper divisors (482019172).

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

254161728 is a wasteful number, since it uses less digits than its factorization.

254161728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664 (or 4651 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 254161728 is about 15942.4505017265. The cubic root of 254161728 is about 633.4369376831.

The spelling of 254161728 in words is "two hundred fifty-four million, one hundred sixty-one thousand, seven hundred twenty-eight".