539994740 has 24 divisors (see below), whose sum is σ = 1155387240. Its totient is φ = 211922048.

The previous prime is 539994737. The next prime is 539994743. The reversal of 539994740 is 47499935.

It is an interprime number because it is at equal distance from previous prime (539994737) and next prime (539994743).

It can be written as a sum of positive squares in 4 ways, for example, as 238208356 + 301786384 = 15434^2 + 17372^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539994743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253655 + ... + 255774.

It is an arithmetic number, because the mean of its divisors is an integer number (48141135).

Almost surely, 2^539994740 is an apocalyptic number.

It is an amenable number.

539994740 is an abundant number, since it is smaller than the sum of its proper divisors (615392500).

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

539994740 is a wasteful number, since it uses less digits than its factorization.

539994740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509491 (or 509489 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 539994740 is about 23237.7868997889. The cubic root of 539994740 is about 814.3226409261.

The spelling of 539994740 in words is "five hundred thirty-nine million, nine hundred ninety-four thousand, seven hundred forty".