40889008146 has 24 divisors (see below), whose sum is σ = 95129529840. Its totient is φ = 11682573672.

The previous prime is 40889008087. The next prime is 40889008157. The reversal of 40889008146 is 64180098804.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40889008095 and 40889008104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69538836 + ... + 69539423.

It is an arithmetic number, because the mean of its divisors is an integer number (3963730410).

Almost surely, 2^40889008146 is an apocalyptic number.

40889008146 is an abundant number, since it is smaller than the sum of its proper divisors (54240521694).

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

40889008146 is a wasteful number, since it uses less digits than its factorization.

40889008146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139078278 (or 139078271 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 40889008146 in words is "forty billion, eight hundred eighty-nine million, eight thousand, one hundred forty-six".