210234042 has 40 divisors (see below), whose sum is σ = 472329792. Its totient is φ = 69892200.

The previous prime is 210234029. The next prime is 210234043. The reversal of 210234042 is 240432012.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (210234043) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 68317 + ... + 71327.

Almost surely, 2^210234042 is an apocalyptic number.

210234042 is an abundant number, since it is smaller than the sum of its proper divisors (262095750).

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

210234042 is a wasteful number, since it uses less digits than its factorization.

210234042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456 (or 3447 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 210234042 is about 14499.4497136960. The cubic root of 210234042 is about 594.6129271659.

Adding to 210234042 its reverse (240432012), we get a palindrome (450666054).

The spelling of 210234042 in words is "two hundred ten million, two hundred thirty-four thousand, forty-two".