40055377 has 4 divisors (see below), whose sum is σ = 40070196. Its totient is φ = 40040560.

The previous prime is 40055369. The next prime is 40055437. The reversal of 40055377 is 77355004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25240576 + 14814801 = 5024^2 + 3849^2 .

It is a cyclic number.

It is not a de Polignac number, because 40055377 - 2³ = 40055369 is a prime.

It is a super-2 number, since 2×40055377² = 3208866453224258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40050377) 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 3 ways as a sum of consecutive naturals, for example, 2074 + ... + 9187.

It is an arithmetic number, because the mean of its divisors is an integer number (10017549).

Almost surely, 2^40055377 is an apocalyptic number.

It is an amenable number.

40055377 is a deficient number, since it is larger than the sum of its proper divisors (14819).

40055377 is a wasteful number, since it uses less digits than its factorization.

40055377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14818.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 40055377 is about 6328.9317424033. The cubic root of 40055377 is about 342.1529387903.

The spelling of 40055377 in words is "forty million, fifty-five thousand, three hundred seventy-seven".