40204146 has 8 divisors (see below), whose sum is σ = 80408304. Its totient is φ = 13401380.

The previous prime is 40204141. The next prime is 40204147. The reversal of 40204146 is 64140204.

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

40204146 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40204141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3350340 + ... + 3350351.

It is an arithmetic number, because the mean of its divisors is an integer number (10051038).

Almost surely, 2^40204146 is an apocalyptic number.

40204146 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.

40204146 is a wasteful number, since it uses less digits than its factorization.

40204146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6700696.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 40204146 is about 6340.6739389437. The cubic root of 40204146 is about 342.5760102669.

The spelling of 40204146 in words is "forty million, two hundred four thousand, one hundred forty-six".