213603268 has 12 divisors (see below), whose sum is σ = 385864192. Its totient is φ = 103356360.

The previous prime is 213603253. The next prime is 213603289. The reversal of 213603268 is 862306312.

It is a super-2 number, since 2×213603268² = 91252712200559648, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861180 + ... + 861427.

Almost surely, 2^213603268 is an apocalyptic number.

It is an amenable number.

213603268 is a deficient number, since it is larger than the sum of its proper divisors (172260924).

213603268 is a wasteful number, since it uses less digits than its factorization.

213603268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722642 (or 1722640 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 213603268 is about 14615.1725272061. The cubic root of 213603268 is about 597.7725446747.

The spelling of 213603268 in words is "two hundred thirteen million, six hundred three thousand, two hundred sixty-eight".