5402540 has 48 divisors (see below), whose sum is σ = 13335840. Its totient is φ = 1812480.

The previous prime is 5402533. The next prime is 5402543. The reversal of 5402540 is 452045.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (5402543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1916 + ... + 3804.

It is an arithmetic number, because the mean of its divisors is an integer number (277830).

Almost surely, 2^5402540 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 5402540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6667920).

5402540 is an abundant number, since it is smaller than the sum of its proper divisors (7933300).

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

5402540 is a wasteful number, since it uses less digits than its factorization.

5402540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 5402540 is about 2324.3364644560. The cubic root of 5402540 is about 175.4685674071.

Adding to 5402540 its reverse (452045), we get a palindrome (5854585).

The spelling of 5402540 in words is "five million, four hundred two thousand, five hundred forty".