40571960 has 128 divisors (see below), whose sum is σ = 110496960. Its totient is φ = 13209600.

The previous prime is 40571959. The next prime is 40571969. The reversal of 40571960 is 6917504.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40571969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234434 + ... + 234606.

Almost surely, 2^40571960 is an apocalyptic number.

40571960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40571960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55248480).

40571960 is an abundant number, since it is smaller than the sum of its proper divisors (69925000).

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

40571960 is a wasteful number, since it uses less digits than its factorization.

40571960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 40571960 is about 6369.6122330955. The cubic root of 40571960 is about 343.6175441193.

The spelling of 40571960 in words is "forty million, five hundred seventy-one thousand, nine hundred sixty".