539996400 has 180 divisors, whose sum is σ = 1905432360. Its totient is φ = 141580800.

The previous prime is 539996371. The next prime is 539996459. The reversal of 539996400 is 4699935.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (180).

It is a super-2 number, since 2×539996400² = 583192224025920000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 218371 + ... + 220829.

Almost surely, 2^539996400 is an apocalyptic number.

539996400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 539996400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (952716180).

539996400 is an abundant number, since it is smaller than the sum of its proper divisors (1365435960).

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

539996400 is a wasteful number, since it uses less digits than its factorization.

539996400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 539996400 is about 23237.8226174485. The cubic root of 539996400 is about 814.3234753627.

The spelling of 539996400 in words is "five hundred thirty-nine million, nine hundred ninety-six thousand, four hundred".