40276681 has 4 divisors (see below), whose sum is σ = 41213392. Its totient is φ = 39339972.

The previous prime is 40276673. The next prime is 40276711. The reversal of 40276681 is 18667204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40276681 - 2³ = 40276673 is a prime.

It is a super-2 number, since 2×40276681² = 3244422064751522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40276651) 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, 468291 + ... + 468376.

It is an arithmetic number, because the mean of its divisors is an integer number (10303348).

Almost surely, 2^40276681 is an apocalyptic number.

It is an amenable number.

40276681 is a deficient number, since it is larger than the sum of its proper divisors (936711).

40276681 is an equidigital number, since it uses as much as digits as its factorization.

40276681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936710.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 40276681 is about 6346.3911792451. The cubic root of 40276681 is about 342.7819079547.

The spelling of 40276681 in words is "forty million, two hundred seventy-six thousand, six hundred eighty-one".