40011455 has 16 divisors (see below), whose sum is σ = 55461024. Its totient is φ = 27386880.

The previous prime is 40011437. The next prime is 40011469. The reversal of 40011455 is 55411004.

It is not a de Polignac number, because 40011455 - 2¹⁴ = 39995071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20462 + ... + 22331.

It is an arithmetic number, because the mean of its divisors is an integer number (3466314).

Almost surely, 2^40011455 is an apocalyptic number.

40011455 is a deficient number, since it is larger than the sum of its proper divisors (15449569).

40011455 is a wasteful number, since it uses less digits than its factorization.

40011455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42826.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 40011455 is about 6325.4608527759. The cubic root of 40011455 is about 342.0278325103.

Adding to 40011455 its reverse (55411004), we get a palindrome (95422459).

The spelling of 40011455 in words is "forty million, eleven thousand, four hundred fifty-five".