5402440 has 32 divisors (see below), whose sum is σ = 12260160. Its totient is φ = 2142400.

The previous prime is 5402437. The next prime is 5402471. The reversal of 5402440 is 442045.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4725 + ... + 5755.

It is an arithmetic number, because the mean of its divisors is an integer number (383130).

Almost surely, 2^5402440 is an apocalyptic number.

It is an amenable number.

5402440 is an abundant number, since it is smaller than the sum of its proper divisors (6857720).

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

5402440 is a wasteful number, since it uses less digits than its factorization.

5402440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 5402440 is about 2324.3149528409. The cubic root of 5402440 is about 175.4674847704.

Adding to 5402440 its reverse (442045), we get a palindrome (5844485).

The spelling of 5402440 in words is "five million, four hundred two thousand, four hundred forty".