4121928 has 40 divisors (see below), whose sum is σ = 11547030. Its totient is φ = 1373760.

The previous prime is 4121927. The next prime is 4121933. The reversal of 4121928 is 8291214.

It can be written as a sum of positive squares in only one way, i.e., 3849444 + 272484 = 1962^2 + 522^2 .

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

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4121927) 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, 2533 + ... + 3828.

Almost surely, 2^4121928 is an apocalyptic number.

It is an amenable number.

4121928 is an abundant number, since it is smaller than the sum of its proper divisors (7425102).

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

4121928 is a wasteful number, since it uses less digits than its factorization.

4121928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6379 (or 6366 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 4121928 is about 2030.2531861815. The cubic root of 4121928 is about 160.3368943077.

The spelling of 4121928 in words is "four million, one hundred twenty-one thousand, nine hundred twenty-eight".