539999994 has 8 divisors (see below), whose sum is σ = 1080000000. Its totient is φ = 179999996.

The previous prime is 539999983. The next prime is 540000023. The reversal of 539999994 is 499999935.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

539999994 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44999994 + ... + 45000005.

It is an arithmetic number, because the mean of its divisors is an integer number (135000000).

Almost surely, 2^539999994 is an apocalyptic number.

539999994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

539999994 is a wasteful number, since it uses less digits than its factorization.

539999994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90000004.

The product of its digits is 31886460, while the sum is 66.

The square root of 539999994 is about 23237.8999481451. The cubic root of 539999994 is about 814.3252819625.

The spelling of 539999994 in words is "five hundred thirty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-four".