542963778 has 32 divisors (see below), whose sum is σ = 1242362880. Its totient is φ = 154969680.

The previous prime is 542963777. The next prime is 542963801. The reversal of 542963778 is 877369245.

It is a self number, because there is not a number n which added to its sum of digits gives 542963778.

It is not an unprimeable number, because it can be changed into a prime (542963777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37033 + ... + 49571.

It is an arithmetic number, because the mean of its divisors is an integer number (38823840).

Almost surely, 2^542963778 is an apocalyptic number.

542963778 is an abundant number, since it is smaller than the sum of its proper divisors (699399102).

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

542963778 is a wasteful number, since it uses less digits than its factorization.

542963778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13582.

The product of its digits is 2540160, while the sum is 51.

The square root of 542963778 is about 23301.5831650985. The cubic root of 542963778 is about 815.8123697539.

The spelling of 542963778 in words is "five hundred forty-two million, nine hundred sixty-three thousand, seven hundred seventy-eight".