213263942 has 16 divisors (see below), whose sum is σ = 347596800. Its totient is φ = 97760520.

The previous prime is 213263917. The next prime is 213263951. The reversal of 213263942 is 249362312.

It is a junction number, because it is equal to n+sod(n) for n = 213263899 and 213263908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89342 + ... + 91697.

It is an arithmetic number, because the mean of its divisors is an integer number (21724800).

Almost surely, 2^213263942 is an apocalyptic number.

213263942 is a deficient number, since it is larger than the sum of its proper divisors (134332858).

213263942 is a wasteful number, since it uses less digits than its factorization.

213263942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181091.

The product of its digits is 15552, while the sum is 32.

The square root of 213263942 is about 14603.5592236961. The cubic root of 213263942 is about 597.4558402965.

The spelling of 213263942 in words is "two hundred thirteen million, two hundred sixty-three thousand, nine hundred forty-two".