40027995 has 48 divisors (see below), whose sum is σ = 80301312. Its totient is φ = 18066240.

The previous prime is 40027993. The next prime is 40027997. The reversal of 40027995 is 59972004.

It is an interprime number because it is at equal distance from previous prime (40027993) and next prime (40027997).

It is not a de Polignac number, because 40027995 - 2¹ = 40027993 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40027993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25380 + ... + 26910.

It is an arithmetic number, because the mean of its divisors is an integer number (1672944).

Almost surely, 2^40027995 is an apocalyptic number.

40027995 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40027995 is an abundant number, since it is smaller than the sum of its proper divisors (40273317).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40027995 is a wasteful number, since it uses less digits than its factorization.

40027995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632 (or 1629 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 40027995 is about 6326.7681323089. The cubic root of 40027995 is about 342.0749553572.

Adding to 40027995 its reverse (59972004), we get a palindrome (99999999).

The spelling of 40027995 in words is "forty million, twenty-seven thousand, nine hundred ninety-five".