40365155 has 16 divisors (see below), whose sum is σ = 49689504. Its totient is φ = 31468800.

The previous prime is 40365121. The next prime is 40365163. The reversal of 40365155 is 55156304.

It is not a de Polignac number, because 40365155 - 2¹⁴ = 40348771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33239 + ... + 34431.

It is an arithmetic number, because the mean of its divisors is an integer number (3105594).

Almost surely, 2^40365155 is an apocalyptic number.

40365155 is a deficient number, since it is larger than the sum of its proper divisors (9324349).

40365155 is a wasteful number, since it uses less digits than its factorization.

40365155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 40365155 is about 6353.3577736501. The cubic root of 40365155 is about 343.0327156729.

The spelling of 40365155 in words is "forty million, three hundred sixty-five thousand, one hundred fifty-five".