40216455 has 48 divisors (see below), whose sum is σ = 72843264. Its totient is φ = 20502720.

The previous prime is 40216433. The next prime is 40216469. The reversal of 40216455 is 55461204.

It is not a de Polignac number, because 40216455 - 2⁷ = 40216327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177052 + ... + 177278.

It is an arithmetic number, because the mean of its divisors is an integer number (1517568).

Almost surely, 2^40216455 is an apocalyptic number.

40216455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40216455 is a deficient number, since it is larger than the sum of its proper divisors (32626809).

40216455 is a wasteful number, since it uses less digits than its factorization.

40216455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 40216455 is about 6341.6445028084. The cubic root of 40216455 is about 342.6109680036.

Adding to 40216455 its reverse (55461204), we get a palindrome (95677659).

The spelling of 40216455 in words is "forty million, two hundred sixteen thousand, four hundred fifty-five".