40971975 has 24 divisors (see below), whose sum is σ = 73900032. Its totient is φ = 19864800.

The previous prime is 40971971. The next prime is 40971977. The reversal of 40971975 is 57917904.

It is a happy number.

It is not a de Polignac number, because 40971975 - 2² = 40971971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40971971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24007 + ... + 25656.

It is an arithmetic number, because the mean of its divisors is an integer number (3079168).

Almost surely, 2^40971975 is an apocalyptic number.

40971975 is a deficient number, since it is larger than the sum of its proper divisors (32928057).

40971975 is a wasteful number, since it uses less digits than its factorization.

40971975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49687 (or 49682 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 40971975 is about 6400.9354785062. The cubic root of 40971975 is about 344.7431400426.

The spelling of 40971975 in words is "forty million, nine hundred seventy-one thousand, nine hundred seventy-five".