40038077 has 4 divisors (see below), whose sum is σ = 42393276. Its totient is φ = 37682880.

The previous prime is 40038059. The next prime is 40038079. The reversal of 40038077 is 77083004.

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 37100281 + 2937796 = 6091^2 + 1714^2 .

It is not a de Polignac number, because 40038077 - 2⁶ = 40038013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40038079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177574 + ... + 1177607.

It is an arithmetic number, because the mean of its divisors is an integer number (10598319).

Almost surely, 2^40038077 is an apocalyptic number.

It is an amenable number.

40038077 is a deficient number, since it is larger than the sum of its proper divisors (2355199).

40038077 is a wasteful number, since it uses less digits than its factorization.

40038077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355198.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 40038077 is about 6327.5648554558. The cubic root of 40038077 is about 342.1036728434.

The spelling of 40038077 in words is "forty million, thirty-eight thousand, seventy-seven".