542040660 has 336 divisors, whose sum is σ = 2009581056. Its totient is φ = 120185856.

The previous prime is 542040617. The next prime is 542040691. The reversal of 542040660 is 66040245.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 4796764 + ... + 4796876.

It is an arithmetic number, because the mean of its divisors is an integer number (5980896).

Almost surely, 2^542040660 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 542040660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1004790528).

542040660 is an abundant number, since it is smaller than the sum of its proper divisors (1467540396).

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

542040660 is a wasteful number, since it uses less digits than its factorization.

542040660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 542040660 is about 23281.7666855417. The cubic root of 542040660 is about 815.3497739629.

The spelling of 542040660 in words is "five hundred forty-two million, forty thousand, six hundred sixty".