40444153 has 2 divisors, whose sum is σ = 40444154. Its totient is φ = 40444152.

The previous prime is 40444147. The next prime is 40444171. The reversal of 40444153 is 35144404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32809984 + 7634169 = 5728^2 + 2763^2 .

It is a cyclic number.

It is not a de Polignac number, because 40444153 - 2²⁵ = 6889721 is a prime.

It is equal to p_2459050 and since 40444153 and 2459050 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40444753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222076 + 20222077.

It is an arithmetic number, because the mean of its divisors is an integer number (20222077).

Almost surely, 2^40444153 is an apocalyptic number.

It is an amenable number.

40444153 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444153 is an equidigital number, since it uses as much as digits as its factorization.

40444153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 40444153 is about 6359.5717623123. The cubic root of 40444153 is about 343.2563511278.

Adding to 40444153 its reverse (35144404), we get a palindrome (75588557).

The spelling of 40444153 in words is "forty million, four hundred forty-four thousand, one hundred fifty-three".