4921128 has 32 divisors (see below), whose sum is σ = 13670400. Its totient is φ = 1640304.

The previous prime is 4921127. The next prime is 4921129. The reversal of 4921128 is 8211294.

It is an interprime number because it is at equal distance from previous prime (4921127) and next prime (4921129).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 not an unprimeable number, because it can be changed into a prime (4921121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11176 + ... + 11607.

It is an arithmetic number, because the mean of its divisors is an integer number (427200).

Almost surely, 2^4921128 is an apocalyptic number.

It is an amenable number.

4921128 is an abundant number, since it is smaller than the sum of its proper divisors (8749272).

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

4921128 is a wasteful number, since it uses less digits than its factorization.

4921128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22798 (or 22788 counting only the distinct ones).

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

The square root of 4921128 is about 2218.3615575465. The cubic root of 4921128 is about 170.0936969069.

The spelling of 4921128 in words is "four million, nine hundred twenty-one thousand, one hundred twenty-eight".