40514643 has 24 divisors (see below), whose sum is σ = 64496432. Its totient is φ = 24349248.

The previous prime is 40514641. The next prime is 40514647. The reversal of 40514643 is 34641504.

40514643 is a `hidden beast` number, since 4 + 0 + 5 + 14 + 643 = 666.

It is not a de Polignac number, because 40514643 - 2¹ = 40514641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40514641) 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, 1005 + ... + 9057.

Almost surely, 2^40514643 is an apocalyptic number.

40514643 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40514643 is a deficient number, since it is larger than the sum of its proper divisors (23981789).

40514643 is a wasteful number, since it uses less digits than its factorization.

40514643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8115 (or 8112 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 40514643 is about 6365.1113894417. Note that the first 3 decimals coincide. The cubic root of 40514643 is about 343.4556555584.

The spelling of 40514643 in words is "forty million, five hundred fourteen thousand, six hundred forty-three".