2801428 has 18 divisors (see below), whose sum is σ = 5703306. Its totient is φ = 1200528.

The previous prime is 2801401. The next prime is 2801431. The reversal of 2801428 is 8241082.

It can be written as a sum of positive squares in only one way, i.e., 1483524 + 1317904 = 1218^2 + 1148^2 .

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6951 + ... + 7342.

2^2801428 is an apocalyptic number.

2801428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2801428 is an abundant number, since it is smaller than the sum of its proper divisors (2901878).

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

2801428 is a wasteful number, since it uses less digits than its factorization.

2801428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14311 (or 14302 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 2801428 is about 1673.7466952917. The cubic root of 2801428 is about 140.9699313848.

The spelling of 2801428 in words is "two million, eight hundred one thousand, four hundred twenty-eight".