539971400 has 48 divisors (see below), whose sum is σ = 1262530800. Its totient is φ = 214767680.

The previous prime is 539971373. The next prime is 539971409. The reversal of 539971400 is 4179935.

It is a happy number.

It is a super-2 number, since 2×539971400² = 583138225635920000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (539971409) 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 11 ways as a sum of consecutive naturals, for example, 28259 + ... + 43341.

It is an arithmetic number, because the mean of its divisors is an integer number (26302725).

Almost surely, 2^539971400 is an apocalyptic number.

539971400 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 539971400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631265400).

539971400 is an abundant number, since it is smaller than the sum of its proper divisors (722559400).

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

539971400 is a wasteful number, since it uses less digits than its factorization.

539971400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15278 (or 15269 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 539971400 is about 23237.2846950757. The cubic root of 539971400 is about 814.3109083647.

The spelling of 539971400 in words is "five hundred thirty-nine million, nine hundred seventy-one thousand, four hundred".