212354652 has 12 divisors (see below), whose sum is σ = 495494216. Its totient is φ = 70784880.

The previous prime is 212354627. The next prime is 212354657. The reversal of 212354652 is 256453212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×212354652² = 90188996452082208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212354657) 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, 8848099 + ... + 8848122.

Almost surely, 2^212354652 is an apocalyptic number.

It is an amenable number.

212354652 is an abundant number, since it is smaller than the sum of its proper divisors (283139564).

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

212354652 is a wasteful number, since it uses less digits than its factorization.

212354652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17696228 (or 17696226 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 212354652 is about 14572.3934890601. The cubic root of 212354652 is about 596.6055097200.

The spelling of 212354652 in words is "two hundred twelve million, three hundred fifty-four thousand, six hundred fifty-two".