40105652 has 24 divisors (see below), whose sum is σ = 77547456. Its totient is φ = 18051968.

The previous prime is 40105651. The next prime is 40105687. The reversal of 40105652 is 25650104.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40105651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11258 + ... + 14385.

It is an arithmetic number, because the mean of its divisors is an integer number (3231144).

Almost surely, 2^40105652 is an apocalyptic number.

It is an amenable number.

40105652 is a deficient number, since it is larger than the sum of its proper divisors (37441804).

40105652 is a wasteful number, since it uses less digits than its factorization.

40105652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25687 (or 25685 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 40105652 is about 6332.9023362120. The cubic root of 40105652 is about 342.2960285862.

Adding to 40105652 its reverse (25650104), we get a palindrome (65755756).

The spelling of 40105652 in words is "forty million, one hundred five thousand, six hundred fifty-two".