212492402 has 8 divisors (see below), whose sum is σ = 323964012. Its totient is φ = 104504400.

The previous prime is 212492389. The next prime is 212492407. The reversal of 212492402 is 204294212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 199967881 + 12524521 = 14141^2 + 3539^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212492407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870749 + ... + 870992.

Almost surely, 2^212492402 is an apocalyptic number.

212492402 is a deficient number, since it is larger than the sum of its proper divisors (111471610).

212492402 is a wasteful number, since it uses less digits than its factorization.

212492402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741804.

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

The square root of 212492402 is about 14577.1191255337. The cubic root of 212492402 is about 596.7344836551.

The spelling of 212492402 in words is "two hundred twelve million, four hundred ninety-two thousand, four hundred two".