54040400 has 30 divisors (see below), whose sum is σ = 129833022. Its totient is φ = 21616000.

The previous prime is 54040397. The next prime is 54040411. The reversal of 54040400 is 404045.

It can be written as a sum of positive squares in 3 ways, for example, as 399424 + 53640976 = 632^2 + 7324^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67151 + ... + 67950.

Almost surely, 2^54040400 is an apocalyptic number.

54040400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

54040400 is an abundant number, since it is smaller than the sum of its proper divisors (75792622).

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

54040400 is a wasteful number, since it uses less digits than its factorization.

54040400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135119 (or 135108 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 54040400 is about 7351.2175862234. The cubic root of 54040400 is about 378.0705522313.

Adding to 54040400 its reverse (404045), we get a palindrome (54444445).

The spelling of 54040400 in words is "fifty-four million, forty thousand, four hundred".