40204422145 has 4 divisors (see below), whose sum is σ = 48245306580. Its totient is φ = 32163537712.

The previous prime is 40204422103. The next prime is 40204422179. The reversal of 40204422145 is 54122440204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12239218161 + 27965203984 = 110631^2 + 167228^2 .

It is a cyclic number.

It is not a de Polignac number, because 40204422145 - 2¹⁷ = 40204291073 is a prime.

It is a super-4 number, since 4×40204422145⁴ (a number of 44 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4020442210 + ... + 4020442219.

It is an arithmetic number, because the mean of its divisors is an integer number (12061326645).

Almost surely, 2^40204422145 is an apocalyptic number.

It is an amenable number.

40204422145 is a deficient number, since it is larger than the sum of its proper divisors (8040884435).

40204422145 is an equidigital number, since it uses as much as digits as its factorization.

40204422145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8040884434.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 40204422145 its reverse (54122440204), we get a palindrome (94326862349).

The spelling of 40204422145 in words is "forty billion, two hundred four million, four hundred twenty-two thousand, one hundred forty-five".