40967521 has 8 divisors (see below), whose sum is σ = 47162880. Its totient is φ = 34857888.

The previous prime is 40967513. The next prime is 40967557. The reversal of 40967521 is 12576904.

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

It is a cyclic number.

It is not a de Polignac number, because 40967521 - 2³ = 40967513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40967561) 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, 20401 + ... + 22318.

It is an arithmetic number, because the mean of its divisors is an integer number (5895360).

Almost surely, 2^40967521 is an apocalyptic number.

It is an amenable number.

40967521 is a deficient number, since it is larger than the sum of its proper divisors (6195359).

40967521 is a wasteful number, since it uses less digits than its factorization.

40967521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42863.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 40967521 is about 6400.5875511550. The cubic root of 40967521 is about 344.7306474255.

The spelling of 40967521 in words is "forty million, nine hundred sixty-seven thousand, five hundred twenty-one".