542947860 has 480 divisors, whose sum is σ = 2185666560. Its totient is φ = 109734912.

The previous prime is 542947859. The next prime is 542947861. The reversal of 542947860 is 68749245.

It is a happy number.

542947860 is a `hidden beast` number, since 542 + 9 + 47 + 8 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (542947859) and next prime (542947861).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542947861) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 4275117 + ... + 4275243.

It is an arithmetic number, because the mean of its divisors is an integer number (4553472).

Almost surely, 2^542947860 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 542947860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092833280).

542947860 is an abundant number, since it is smaller than the sum of its proper divisors (1642718700).

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

542947860 is a wasteful number, since it uses less digits than its factorization.

542947860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 542947860 is about 23301.2415978205. The cubic root of 542947860 is about 815.8043973201.

The spelling of 542947860 in words is "five hundred forty-two million, nine hundred forty-seven thousand, eight hundred sixty".