40677381 has 6 divisors (see below), whose sum is σ = 58756230. Its totient is φ = 27118248.

The previous prime is 40677367. The next prime is 40677389. The reversal of 40677381 is 18377604.

It can be written as a sum of positive squares in only one way, i.e., 28836900 + 11840481 = 5370^2 + 3441^2 .

It is not a de Polignac number, because 40677381 - 2⁷ = 40677253 is a prime.

It is a super-2 number, since 2×40677381² = 3309298650038322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40677389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2259846 + ... + 2259863.

It is an arithmetic number, because the mean of its divisors is an integer number (9792705).

Almost surely, 2^40677381 is an apocalyptic number.

It is an amenable number.

40677381 is a deficient number, since it is larger than the sum of its proper divisors (18078849).

40677381 is a wasteful number, since it uses less digits than its factorization.

40677381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519715 (or 4519712 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 40677381 is about 6377.8821720066. The cubic root of 40677381 is about 343.9149019944.

The spelling of 40677381 in words is "forty million, six hundred seventy-seven thousand, three hundred eighty-one".