542636430 has 128 divisors (see below), whose sum is σ = 1593188352. Its totient is φ = 115458048.

The previous prime is 542636407. The next prime is 542636441. The reversal of 542636430 is 34636245.

It is a junction number, because it is equal to n+sod(n) for n = 542636391 and 542636400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 345507 + ... + 347073.

It is an arithmetic number, because the mean of its divisors is an integer number (12446784).

Almost surely, 2^542636430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542636430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796594176).

542636430 is an abundant number, since it is smaller than the sum of its proper divisors (1050551922).

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

542636430 is a wasteful number, since it uses less digits than its factorization.

542636430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698.

The product of its (nonzero) digits is 51840, while the sum is 33.

The square root of 542636430 is about 23294.5579481560. The cubic root of 542636430 is about 815.6483881375.

The spelling of 542636430 in words is "five hundred forty-two million, six hundred thirty-six thousand, four hundred thirty".