210280042 has 16 divisors (see below), whose sum is σ = 361244160. Its totient is φ = 89929008.

The previous prime is 210280039. The next prime is 210280043. The reversal of 210280042 is 240082012.

It is not an unprimeable number, because it can be changed into a prime (210280043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8973 + ... + 22384.

It is an arithmetic number, because the mean of its divisors is an integer number (22577760).

Almost surely, 2^210280042 is an apocalyptic number.

210280042 is a deficient number, since it is larger than the sum of its proper divisors (150964118).

210280042 is a wasteful number, since it uses less digits than its factorization.

210280042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31845.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 210280042 is about 14501.0358940318. The cubic root of 210280042 is about 594.6562918524.

The spelling of 210280042 in words is "two hundred ten million, two hundred eighty thousand, forty-two".