210412542 has 16 divisors (see below), whose sum is σ = 422714880. Its totient is φ = 69822552.

The previous prime is 210412541. The next prime is 210412571. The reversal of 210412542 is 245214012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210412541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77292 + ... + 79967.

It is an arithmetic number, because the mean of its divisors is an integer number (26419680).

Almost surely, 2^210412542 is an apocalyptic number.

210412542 is an abundant number, since it is smaller than the sum of its proper divisors (212302338).

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

210412542 is a wasteful number, since it uses less digits than its factorization.

210412542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157487.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 210412542 is about 14505.6038136990. The cubic root of 210412542 is about 594.7811656706.

Adding to 210412542 its reverse (245214012), we get a palindrome (455626554).

The spelling of 210412542 in words is "two hundred ten million, four hundred twelve thousand, five hundred forty-two".