540209740 has 96 divisors (see below), whose sum is σ = 1364557824. Its totient is φ = 175633920.

The previous prime is 540209737. The next prime is 540209743. The reversal of 540209740 is 47902045.

It is an interprime number because it is at equal distance from previous prime (540209737) and next prime (540209743).

It is not an unprimeable number, because it can be changed into a prime (540209743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408280 + ... + 409600.

It is an arithmetic number, because the mean of its divisors is an integer number (14214144).

Almost surely, 2^540209740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540209740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682278912).

540209740 is an abundant number, since it is smaller than the sum of its proper divisors (824348084).

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

540209740 is a wasteful number, since it uses less digits than its factorization.

540209740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487 (or 1485 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 540209740 is about 23242.4125253813. The cubic root of 540209740 is about 814.4307013224.

The spelling of 540209740 in words is "five hundred forty million, two hundred nine thousand, seven hundred forty".