5401890 has 128 divisors (see below), whose sum is σ = 16531200. Its totient is φ = 1259712.

The previous prime is 5401867. The next prime is 5401897. The reversal of 5401890 is 981045.

5401890 is nontrivially palindromic in base 8.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5401897) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 284301 + ... + 284319.

It is an arithmetic number, because the mean of its divisors is an integer number (129150).

Almost surely, 2^5401890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5401890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8265600).

5401890 is an abundant number, since it is smaller than the sum of its proper divisors (11129310).

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

5401890 is a wasteful number, since it uses less digits than its factorization.

5401890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 5401890 is about 2324.1966353990. The cubic root of 5401890 is about 175.4615300295.

The spelling of 5401890 in words is "five million, four hundred one thousand, eight hundred ninety".