40206828 has 12 divisors (see below), whose sum is σ = 93815960. Its totient is φ = 13402272.

The previous prime is 40206811. The next prime is 40206851. The reversal of 40206828 is 82860204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 40206795 and 40206804.

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, 1675273 + ... + 1675296.

Almost surely, 2^40206828 is an apocalyptic number.

It is an amenable number.

40206828 is an abundant number, since it is smaller than the sum of its proper divisors (53609132).

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

40206828 is a wasteful number, since it uses less digits than its factorization.

40206828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350576 (or 3350574 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 40206828 is about 6340.8854271308. The cubic root of 40206828 is about 342.5836277933.

The spelling of 40206828 in words is "forty million, two hundred six thousand, eight hundred twenty-eight".