213078942 has 24 divisors (see below), whose sum is σ = 462077616. Its totient is φ = 70963776.

The previous prime is 213078941. The next prime is 213078947. The reversal of 213078942 is 249870312.

It is a junction number, because it is equal to n+sod(n) for n = 213078897 and 213078906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213078941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18783 + ... + 27909.

It is an arithmetic number, because the mean of its divisors is an integer number (19253234).

Almost surely, 2^213078942 is an apocalyptic number.

213078942 is an abundant number, since it is smaller than the sum of its proper divisors (248998674).

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

213078942 is a wasteful number, since it uses less digits than its factorization.

213078942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10432 (or 10429 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 213078942 is about 14597.2237771434. The cubic root of 213078942 is about 597.2830320460.

The spelling of 213078942 in words is "two hundred thirteen million, seventy-eight thousand, nine hundred forty-two".