40217454 has 12 divisors (see below), whose sum is σ = 87137856. Its totient is φ = 13405812.

The previous prime is 40217449. The next prime is 40217497. The reversal of 40217454 is 45471204.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1117134 + ... + 1117169.

It is an arithmetic number, because the mean of its divisors is an integer number (7261488).

Almost surely, 2^40217454 is an apocalyptic number.

40217454 is an abundant number, since it is smaller than the sum of its proper divisors (46920402).

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

40217454 is a wasteful number, since it uses less digits than its factorization.

40217454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234311 (or 2234308 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 40217454 is about 6341.7232673777. The cubic root of 40217454 is about 342.6138048649.

Adding to 40217454 its reverse (45471204), we get a palindrome (85688658).

The spelling of 40217454 in words is "forty million, two hundred seventeen thousand, four hundred fifty-four".