40403106 has 48 divisors (see below), whose sum is σ = 91922688. Its totient is φ = 12808800.

The previous prime is 40403059. The next prime is 40403113. The reversal of 40403106 is 60130404.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33445 + ... + 34631.

It is an arithmetic number, because the mean of its divisors is an integer number (1915056).

Almost surely, 2^40403106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40403106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45961344).

40403106 is an abundant number, since it is smaller than the sum of its proper divisors (51519582).

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

40403106 is a wasteful number, since it uses less digits than its factorization.

40403106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40403106 is about 6356.3437603704. The cubic root of 40403106 is about 343.1401875488.

The spelling of 40403106 in words is "forty million, four hundred three thousand, one hundred six".