212890632 has 16 divisors (see below), whose sum is σ = 532226640. Its totient is φ = 70963536.

The previous prime is 212890631. The next prime is 212890633. The reversal of 212890632 is 236098212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212890631) and next prime (212890633).

It is a junction number, because it is equal to n+sod(n) for n = 212890593 and 212890602.

It is not an unprimeable number, because it can be changed into a prime (212890631) 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, 4435198 + ... + 4435245.

It is an arithmetic number, because the mean of its divisors is an integer number (33264165).

Almost surely, 2^212890632 is an apocalyptic number.

It is an amenable number.

212890632 is an abundant number, since it is smaller than the sum of its proper divisors (319336008).

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

212890632 is a wasteful number, since it uses less digits than its factorization.

212890632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8870452 (or 8870448 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 212890632 is about 14590.7721522886. The cubic root of 212890632 is about 597.1070291738.

The spelling of 212890632 in words is "two hundred twelve million, eight hundred ninety thousand, six hundred thirty-two".