5401040 has 40 divisors (see below), whose sum is σ = 12660648. Its totient is φ = 2142720.

The previous prime is 5401027. The next prime is 5401043. The reversal of 5401040 is 401045.

It can be written as a sum of positive squares in 4 ways, for example, as 64 + 5400976 = 8^2 + 2324^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5401043) 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, 14294 + ... + 14666.

Almost surely, 2^5401040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5401040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6330324).

5401040 is an abundant number, since it is smaller than the sum of its proper divisors (7259608).

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

5401040 is a wasteful number, since it uses less digits than its factorization.

5401040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 5401040 is about 2324.0137693224. The cubic root of 5401040 is about 175.4523264529.

Adding to 5401040 its reverse (401045), we get a palindrome (5802085).

The spelling of 5401040 in words is "five million, four hundred one thousand, forty".