40001712 has 40 divisors (see below), whose sum is σ = 104040960. Its totient is φ = 13243200.

The previous prime is 40001711. The next prime is 40001719. The reversal of 40001712 is 21710004.

It is a junction number, because it is equal to n+sod(n) for n = 40001691 and 40001700.

It is not an unprimeable number, because it can be changed into a prime (40001711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4489 + ... + 10007.

It is an arithmetic number, because the mean of its divisors is an integer number (2601024).

Almost surely, 2^40001712 is an apocalyptic number.

It is an amenable number.

40001712 is an abundant number, since it is smaller than the sum of its proper divisors (64039248).

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

40001712 is a wasteful number, since it uses less digits than its factorization.

40001712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681 (or 5675 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 40001712 is about 6324.6906643724. The cubic root of 40001712 is about 342.0000683971. Note that the first 4 decimals are identical.

Adding to 40001712 its reverse (21710004), we get a palindrome (61711716).

The spelling of 40001712 in words is "forty million, one thousand, seven hundred twelve".