212532090 has 16 divisors (see below), whose sum is σ = 510077088. Its totient is φ = 56675216.

The previous prime is 212532077. The next prime is 212532091. The reversal of 212532090 is 90235212.

It is a self number, because there is not a number n which added to its sum of digits gives 212532090.

It is not an unprimeable number, because it can be changed into a prime (212532091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3542172 + ... + 3542231.

It is an arithmetic number, because the mean of its divisors is an integer number (31879818).

Almost surely, 2^212532090 is an apocalyptic number.

212532090 is an abundant number, since it is smaller than the sum of its proper divisors (297544998).

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

212532090 is a wasteful number, since it uses less digits than its factorization.

212532090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7084413.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 212532090 is about 14578.4803734820. The cubic root of 212532090 is about 596.7716327856.

The spelling of 212532090 in words is "two hundred twelve million, five hundred thirty-two thousand, ninety".