210020342 has 32 divisors (see below), whose sum is σ = 370656000. Its totient is φ = 87379488.

The previous prime is 210020341. The next prime is 210020351. The reversal of 210020342 is 243020012.

It is a super-3 number, since 3×210020342³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106784 + ... + 108732.

It is an arithmetic number, because the mean of its divisors is an integer number (11583000).

Almost surely, 2^210020342 is an apocalyptic number.

210020342 is a deficient number, since it is larger than the sum of its proper divisors (160635658).

210020342 is a wasteful number, since it uses less digits than its factorization.

210020342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 210020342 is about 14492.0785948738. The cubic root of 210020342 is about 594.4113869202.

Adding to 210020342 its reverse (243020012), we get a palindrome (453040354).

The spelling of 210020342 in words is "two hundred ten million, twenty thousand, three hundred forty-two".