40905102 has 24 divisors (see below), whose sum is σ = 95167656. Its totient is φ = 11687088.

The previous prime is 40905097. The next prime is 40905107. The reversal of 40905102 is 20150904.

It is an interprime number because it is at equal distance from previous prime (40905097) and next prime (40905107).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40905107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69273 + ... + 69860.

It is an arithmetic number, because the mean of its divisors is an integer number (3965319).

Almost surely, 2^40905102 is an apocalyptic number.

40905102 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40905102 is an abundant number, since it is smaller than the sum of its proper divisors (54262554).

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

40905102 is a wasteful number, since it uses less digits than its factorization.

40905102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139152 (or 139145 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 40905102 is about 6395.7096556989. The cubic root of 40905102 is about 344.5554787446. Note that the first 3 decimals are identical.

The spelling of 40905102 in words is "forty million, nine hundred five thousand, one hundred two".