40510965 has 16 divisors (see below), whose sum is σ = 70710336. Its totient is φ = 19641600.

The previous prime is 40510961. The next prime is 40511063. The reversal of 40510965 is 56901504.

40510965 = T₁₃₁ + T₁₃₂ + ... + T₆₂₅.

It is not a de Polignac number, because 40510965 - 2² = 40510961 is a prime.

It is a super-2 number, since 2×40510965² = 3282276570462450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40510961) 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, 122596 + ... + 122925.

It is an arithmetic number, because the mean of its divisors is an integer number (4419396).

Almost surely, 2^40510965 is an apocalyptic number.

It is an amenable number.

40510965 is a deficient number, since it is larger than the sum of its proper divisors (30199371).

40510965 is a wasteful number, since it uses less digits than its factorization.

40510965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245540.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 40510965 is about 6364.8224641383. The cubic root of 40510965 is about 343.4452620477.

The spelling of 40510965 in words is "forty million, five hundred ten thousand, nine hundred sixty-five".