212442902 has 8 divisors (see below), whose sum is σ = 364187856. Its totient is φ = 91046952.

The previous prime is 212442889. The next prime is 212442913. The reversal of 212442902 is 209244212.

It is a happy number.

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

It is a super-2 number, since 2×212442902² = 90263973220363208, which contains 22 as substring.

It is a congruent number.

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, 7587233 + ... + 7587260.

It is an arithmetic number, because the mean of its divisors is an integer number (45523482).

Almost surely, 2^212442902 is an apocalyptic number.

212442902 is a deficient number, since it is larger than the sum of its proper divisors (151744954).

212442902 is a wasteful number, since it uses less digits than its factorization.

212442902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15174502.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 212442902 is about 14575.4211602958. The cubic root of 212442902 is about 596.6881437223.

The spelling of 212442902 in words is "two hundred twelve million, four hundred forty-two thousand, nine hundred two".