749438206 has 32 divisors (see below), whose sum is σ = 1280240640. Its totient is φ = 325934400.

The previous prime is 749438189. The next prime is 749438227. The reversal of 749438206 is 602834947.

It is a super-2 number, since 2×749438206² = 1123315249224996872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54525 + ... + 66871.

It is an arithmetic number, because the mean of its divisors is an integer number (40007520).

Almost surely, 2^749438206 is an apocalyptic number.

749438206 is a deficient number, since it is larger than the sum of its proper divisors (530802434).

749438206 is a wasteful number, since it uses less digits than its factorization.

749438206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12480.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 749438206 is about 27375.8690455664. The cubic root of 749438206 is about 908.3333847618. Note that the first 4 decimals are identical.

The spelling of 749438206 in words is "seven hundred forty-nine million, four hundred thirty-eight thousand, two hundred six".