40898172 has 48 divisors (see below), whose sum is σ = 112017920. Its totient is φ = 11368512.

The previous prime is 40898161. The next prime is 40898173. The reversal of 40898172 is 27189804.

It is a self number, because there is not a number n which added to its sum of digits gives 40898172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40898173) 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, 3472 + ... + 9687.

Almost surely, 2^40898172 is an apocalyptic number.

40898172 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40898172 is an abundant number, since it is smaller than the sum of its proper divisors (71119748).

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

40898172 is a wasteful number, since it uses less digits than its factorization.

40898172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13210 (or 13208 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 40898172 is about 6395.1678633168. The cubic root of 40898172 is about 344.5360198490.

The spelling of 40898172 in words is "forty million, eight hundred ninety-eight thousand, one hundred seventy-two".