210415842 has 96 divisors (see below), whose sum is σ = 590728320. Its totient is φ = 52565760.

The previous prime is 210415841. The next prime is 210415859. The reversal of 210415842 is 248514012.

It is not an unprimeable number, because it can be changed into a prime (210415841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27742 + ... + 34502.

It is an arithmetic number, because the mean of its divisors is an integer number (6153420).

Almost surely, 2^210415842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210415842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295364160).

210415842 is an abundant number, since it is smaller than the sum of its proper divisors (380312478).

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

210415842 is a wasteful number, since it uses less digits than its factorization.

210415842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6808 (or 6805 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 210415842 is about 14505.7175623959. The cubic root of 210415842 is about 594.7842750663.

Adding to 210415842 its reverse (248514012), we get a palindrome (458929854).

The spelling of 210415842 in words is "two hundred ten million, four hundred fifteen thousand, eight hundred forty-two".