5442890 has 32 divisors (see below), whose sum is σ = 10509264. Its totient is φ = 2022400.

The previous prime is 5442859. The next prime is 5442893. The reversal of 5442890 is 982445.

It is a Cunningham number, because it is equal to 2333²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 3243601 + 2199289 = 1801^2 + 1483^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5442893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17012 + ... + 17328.

Almost surely, 2^5442890 is an apocalyptic number.

5442890 is a deficient number, since it is larger than the sum of its proper divisors (5066374).

5442890 is a wasteful number, since it uses less digits than its factorization.

5442890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 5442890 is about 2333.0002143163. Note that the first 3 decimals coincide. The cubic root of 5442890 is about 175.9043255830.

The spelling of 5442890 in words is "five million, four hundred forty-two thousand, eight hundred ninety".