40640110 has 24 divisors (see below), whose sum is σ = 85096440. Its totient is φ = 13933584.

The previous prime is 40640053. The next prime is 40640113. The reversal of 40640110 is 1104604.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40640113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40980 + ... + 41959.

It is an arithmetic number, because the mean of its divisors is an integer number (3545685).

Almost surely, 2^40640110 is an apocalyptic number.

40640110 is an abundant number, since it is smaller than the sum of its proper divisors (44456330).

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

40640110 is a wasteful number, since it uses less digits than its factorization.

40640110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82960 (or 82953 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 40640110 is about 6374.9596077152. The cubic root of 40640110 is about 343.8098315689.

Adding to 40640110 its reverse (1104604), we get a palindrome (41744714).

The spelling of 40640110 in words is "forty million, six hundred forty thousand, one hundred ten".