40022455 has 16 divisors (see below), whose sum is σ = 55152000. Its totient is φ = 27574560.

The previous prime is 40022447. The next prime is 40022459. The reversal of 40022455 is 55422004.

It is not a de Polignac number, because 40022455 - 2³ = 40022447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40022459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18105 + ... + 20194.

It is an arithmetic number, because the mean of its divisors is an integer number (3447000).

Almost surely, 2^40022455 is an apocalyptic number.

40022455 is a deficient number, since it is larger than the sum of its proper divisors (15129545).

40022455 is a wasteful number, since it uses less digits than its factorization.

40022455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38334.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 40022455 is about 6326.3302948866. The cubic root of 40022455 is about 342.0591732137.

Adding to 40022455 its reverse (55422004), we get a palindrome (95444459).

The spelling of 40022455 in words is "forty million, twenty-two thousand, four hundred fifty-five".