542385740 has 48 divisors (see below), whose sum is σ = 1235660832. Its totient is φ = 198790656.

The previous prime is 542385737. The next prime is 542385749. The reversal of 542385740 is 47583245.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 542385694 and 542385703.

It is not an unprimeable number, because it can be changed into a prime (542385749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28007 + ... + 43233.

It is an arithmetic number, because the mean of its divisors is an integer number (25742934).

Almost surely, 2^542385740 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 542385740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (617830416).

542385740 is an abundant number, since it is smaller than the sum of its proper divisors (693275092).

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

542385740 is a wasteful number, since it uses less digits than its factorization.

542385740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15386 (or 15384 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

The square root of 542385740 is about 23289.1764560278. The cubic root of 542385740 is about 815.5227629618.

The spelling of 542385740 in words is "five hundred forty-two million, three hundred eighty-five thousand, seven hundred forty".