542523630 has 64 divisors (see below), whose sum is σ = 1443764736. Its totient is φ = 129360000.

The previous prime is 542523623. The next prime is 542523649. The reversal of 542523630 is 36325245.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6655 + ... + 33605.

It is an arithmetic number, because the mean of its divisors is an integer number (22558824).

Almost surely, 2^542523630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542523630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (721882368).

542523630 is an abundant number, since it is smaller than the sum of its proper divisors (901241106).

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

542523630 is a wasteful number, since it uses less digits than its factorization.

542523630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27033.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 542523630 is about 23292.1366559618. The cubic root of 542523630 is about 815.5918668592.

Adding to 542523630 its reverse (36325245), we get a palindrome (578848875).

The spelling of 542523630 in words is "five hundred forty-two million, five hundred twenty-three thousand, six hundred thirty".