210025442 has 8 divisors (see below), whose sum is σ = 343678032. Its totient is φ = 95466100.

The previous prime is 210025433. The next prime is 210025457. The reversal of 210025442 is 244520012.

It is a happy number.

210025442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×210025442² = 88221372574590728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4773284 + ... + 4773327.

It is an arithmetic number, because the mean of its divisors is an integer number (42959754).

Almost surely, 2^210025442 is an apocalyptic number.

210025442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210025442 is a deficient number, since it is larger than the sum of its proper divisors (133652590).

210025442 is a wasteful number, since it uses less digits than its factorization.

210025442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9546624.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 210025442 is about 14492.2545520012. The cubic root of 210025442 is about 594.4161983169.

Adding to 210025442 its reverse (244520012), we get a palindrome (454545454).

The spelling of 210025442 in words is "two hundred ten million, twenty-five thousand, four hundred forty-two".