377272728 has 160 divisors (see below), whose sum is σ = 1247093760. Its totient is φ = 104276160.

The previous prime is 377272681. The next prime is 377272747. The reversal of 377272728 is 827272773.

377272728 is a `hidden beast` number, since 377 + 2 + 7 + 272 + 8 = 666.

It is a super-2 number, since 2×377272728² = 284669422585123968, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 139275 + ... + 141957.

It is an arithmetic number, because the mean of its divisors is an integer number (7794336).

Almost surely, 2^377272728 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 377272728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623546880).

377272728 is an abundant number, since it is smaller than the sum of its proper divisors (869821032).

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

377272728 is a wasteful number, since it uses less digits than its factorization.

377272728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2726 counting only the distinct ones).

The product of its digits is 460992, while the sum is 45.

The square root of 377272728 is about 19423.5096725592. The cubic root of 377272728 is about 722.5786701691.

Adding to 377272728 its sum of digits (45), we get a palindrome (377272773).

The spelling of 377272728 in words is "three hundred seventy-seven million, two hundred seventy-two thousand, seven hundred twenty-eight".