40415898 has 16 divisors (see below), whose sum is σ = 81971136. Its totient is φ = 13282080.

The previous prime is 40415897. The next prime is 40415917. The reversal of 40415898 is 89851404.

40415898 is nontrivially palindromic in base 8.

It is a super-4 number, since 4×40415898⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (40415891) 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, 47011 + ... + 47862.

It is an arithmetic number, because the mean of its divisors is an integer number (5123196).

Almost surely, 2^40415898 is an apocalyptic number.

40415898 is an abundant number, since it is smaller than the sum of its proper divisors (41555238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40415898 is a wasteful number, since it uses less digits than its factorization.

40415898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94949.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 40415898 is about 6357.3499195813. The cubic root of 40415898 is about 343.1763975216.

The spelling of 40415898 in words is "forty million, four hundred fifteen thousand, eight hundred ninety-eight".