40556029 has 8 divisors (see below), whose sum is σ = 42006528. Its totient is φ = 39114480.

The previous prime is 40556023. The next prime is 40556057. The reversal of 40556029 is 92065504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40556029 - 2⁹ = 40555517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40556023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7764 + ... + 11890.

It is an arithmetic number, because the mean of its divisors is an integer number (5250816).

Almost surely, 2^40556029 is an apocalyptic number.

It is an amenable number.

40556029 is a deficient number, since it is larger than the sum of its proper divisors (1450499).

40556029 is a wasteful number, since it uses less digits than its factorization.

40556029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 40556029 is about 6368.3615632280. The cubic root of 40556029 is about 343.5725632364.

The spelling of 40556029 in words is "forty million, five hundred fifty-six thousand, twenty-nine".