40421946 has 8 divisors (see below), whose sum is σ = 80843904. Its totient is φ = 13473980.

The previous prime is 40421939. The next prime is 40421947. The reversal of 40421946 is 64912404.

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

40421946 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40421947) 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, 3368490 + ... + 3368501.

It is an arithmetic number, because the mean of its divisors is an integer number (10105488).

Almost surely, 2^40421946 is an apocalyptic number.

40421946 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.

40421946 is a wasteful number, since it uses less digits than its factorization.

40421946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6736996.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 40421946 is about 6357.8255716872. The cubic root of 40421946 is about 343.1935147736.

The spelling of 40421946 in words is "forty million, four hundred twenty-one thousand, nine hundred forty-six".