40898905 has 8 divisors (see below), whose sum is σ = 49283784. Its totient is φ = 32582400.

The previous prime is 40898873. The next prime is 40898917. The reversal of 40898905 is 50989804.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7767369 + 33131536 = 2787^2 + 5756^2 .

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

It is not a de Polignac number, because 40898905 - 2⁵ = 40898873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15766 + ... + 18175.

It is an arithmetic number, because the mean of its divisors is an integer number (6160473).

Almost surely, 2^40898905 is an apocalyptic number.

It is an amenable number.

40898905 is a deficient number, since it is larger than the sum of its proper divisors (8384879).

40898905 is a wasteful number, since it uses less digits than its factorization.

40898905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34187.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 40898905 is about 6395.2251719545. The cubic root of 40898905 is about 344.5380781594.

The spelling of 40898905 in words is "forty million, eight hundred ninety-eight thousand, nine hundred five".