40998881 has 8 divisors (see below), whose sum is σ = 51115584. Its totient is φ = 31947120.

The previous prime is 40998871. The next prime is 40998911. The reversal of 40998881 is 18889904.

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

It is a cyclic number.

It is not a de Polignac number, because 40998881 - 2⁶ = 40998817 is a prime.

It is a super-2 number, since 2×40998881² = 3361816486504322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40998821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266150 + ... + 266303.

It is an arithmetic number, because the mean of its divisors is an integer number (6389448).

Almost surely, 2^40998881 is an apocalyptic number.

It is an amenable number.

40998881 is a deficient number, since it is larger than the sum of its proper divisors (10116703).

40998881 is a wasteful number, since it uses less digits than its factorization.

40998881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532471.

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 40998881 is about 6403.0368576169. The cubic root of 40998881 is about 344.8185869731.

The spelling of 40998881 in words is "forty million, nine hundred ninety-eight thousand, eight hundred eighty-one".