2780000542 has 32 divisors (see below), whose sum is σ = 4797429120. Its totient is φ = 1194901920.

The previous prime is 2780000533. The next prime is 2780000543. The reversal of 2780000542 is 2450000872.

It is a self number, because there is not a number n which added to its sum of digits gives 2780000542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780000543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229428 + ... + 241240.

It is an arithmetic number, because the mean of its divisors is an integer number (149919660).

Almost surely, 2^2780000542 is an apocalyptic number.

2780000542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2780000542 is a deficient number, since it is larger than the sum of its proper divisors (2017428578).

2780000542 is a wasteful number, since it uses less digits than its factorization.

2780000542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12408.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2780000542 is about 52725.7104456640. The cubic root of 2780000542 is about 1406.0959592600.

The spelling of 2780000542 in words is "two billion, seven hundred eighty million, five hundred forty-two", and thus it is an aban number.