40646453 has 8 divisors (see below), whose sum is σ = 42882720. Its totient is φ = 38419920.

The previous prime is 40646449. The next prime is 40646467. The reversal of 40646453 is 35464604.

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 40646453 - 2² = 40646449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40646443) 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, 7151 + ... + 11507.

It is an arithmetic number, because the mean of its divisors is an integer number (5360340).

Almost surely, 2^40646453 is an apocalyptic number.

It is an amenable number.

40646453 is a deficient number, since it is larger than the sum of its proper divisors (2236267).

40646453 is a wasteful number, since it uses less digits than its factorization.

40646453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4867.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 40646453 is about 6375.4570816530. The cubic root of 40646453 is about 343.8277176123.

The spelling of 40646453 in words is "forty million, six hundred forty-six thousand, four hundred fifty-three".