40306206 has 8 divisors (see below), whose sum is σ = 80612424. Its totient is φ = 13435400.

The previous prime is 40306199. The next prime is 40306223. The reversal of 40306206 is 60260304.

It is a sphenic number, since it is the product of 3 distinct primes.

40306206 is an admirable number.

It is a super-2 number, since 2×40306206² = 3249180484228872, which contains 22 as substring.

It is a congruent number.

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, 3358845 + ... + 3358856.

It is an arithmetic number, because the mean of its divisors is an integer number (10076553).

Almost surely, 2^40306206 is an apocalyptic number.

40306206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40306206 is a wasteful number, since it uses less digits than its factorization.

40306206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6717706.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 40306206 is about 6348.7168782361. The cubic root of 40306206 is about 342.8656467633.

The spelling of 40306206 in words is "forty million, three hundred six thousand, two hundred six".