542780406 has 64 divisors (see below), whose sum is σ = 1380802560. Its totient is φ = 154820160.

The previous prime is 542780389. The next prime is 542780411. The reversal of 542780406 is 604087245.

542780406 is a `hidden beast` number, since 542 + 78 + 0 + 40 + 6 = 666.

542780406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×542780406² = 589221138275049672, which contains 22 as substring.

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, 410226 + ... + 411546.

It is an arithmetic number, because the mean of its divisors is an integer number (21575040).

Almost surely, 2^542780406 is an apocalyptic number.

542780406 is an abundant number, since it is smaller than the sum of its proper divisors (838022154).

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

542780406 is a wasteful number, since it uses less digits than its factorization.

542780406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426 (or 2420 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 542780406 is about 23297.6480787225. The cubic root of 542780406 is about 815.7205195569.

The spelling of 542780406 in words is "five hundred forty-two million, seven hundred eighty thousand, four hundred six".