40122453 has 8 divisors (see below), whose sum is σ = 61139008. Its totient is φ = 22927104.

The previous prime is 40122437. The next prime is 40122461. The reversal of 40122453 is 35422104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40122453 - 2⁴ = 40122437 is a prime.

It is a super-2 number, since 2×40122453² = 3219622469474418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1910593 = 40122453 / (4 + 0 + 1 + 2 + 2 + 4 + 5 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955276 + ... + 955317.

It is an arithmetic number, because the mean of its divisors is an integer number (7642376).

Almost surely, 2^40122453 is an apocalyptic number.

It is an amenable number.

40122453 is a deficient number, since it is larger than the sum of its proper divisors (21016555).

40122453 is a wasteful number, since it uses less digits than its factorization.

40122453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910603.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40122453 is about 6334.2286823259. The cubic root of 40122453 is about 342.3438199608.

Adding to 40122453 its reverse (35422104), we get a palindrome (75544557).

The spelling of 40122453 in words is "forty million, one hundred twenty-two thousand, four hundred fifty-three".