212089240 has 32 divisors (see below), whose sum is σ = 520583760. Its totient is φ = 77123200.

The previous prime is 212089231. The next prime is 212089261. The reversal of 212089240 is 42980212.

It is a super-3 number, since 3×212089240³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212089199 and 212089208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240571 + ... + 241450.

Almost surely, 2^212089240 is an apocalyptic number.

212089240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212089240 is an abundant number, since it is smaller than the sum of its proper divisors (308494520).

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

212089240 is a wasteful number, since it uses less digits than its factorization.

212089240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482043 (or 482039 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 212089240 is about 14563.2839703138. The cubic root of 212089240 is about 596.3568497923.

The spelling of 212089240 in words is "two hundred twelve million, eighty-nine thousand, two hundred forty".