542609860 has 96 divisors (see below), whose sum is σ = 1257379200. Its totient is φ = 195486720.

The previous prime is 542609849. The next prime is 542609861. The reversal of 542609860 is 68906245.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (542609861) 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, 3031251 + ... + 3031429.

It is an arithmetic number, because the mean of its divisors is an integer number (13097700).

Almost surely, 2^542609860 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 542609860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628689600).

542609860 is an abundant number, since it is smaller than the sum of its proper divisors (714769340).

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

542609860 is a wasteful number, since it uses less digits than its factorization.

542609860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 542609860 is about 23293.9876362979. The cubic root of 542609860 is about 815.6350752757.

The spelling of 542609860 in words is "five hundred forty-two million, six hundred nine thousand, eight hundred sixty".