40612881 has 24 divisors (see below), whose sum is σ = 58108960. Its totient is φ = 25224192.

The previous prime is 40612877. The next prime is 40612889. The reversal of 40612881 is 18821604.

It is not a de Polignac number, because 40612881 - 2² = 40612877 is a prime.

It is a super-2 number, since 2×40612881² = 3298812206240322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40612889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120345 + ... + 120681.

Almost surely, 2^40612881 is an apocalyptic number.

It is an amenable number.

40612881 is a deficient number, since it is larger than the sum of its proper divisors (17496079).

40612881 is a wasteful number, since it uses less digits than its factorization.

40612881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 40612881 is about 6372.8236285025. The cubic root of 40612881 is about 343.7330298620.

The spelling of 40612881 in words is "forty million, six hundred twelve thousand, eight hundred eighty-one".