40862681 has 12 divisors (see below), whose sum is σ = 42742692. Its totient is φ = 39060000.

The previous prime is 40862677. The next prime is 40862687. The reversal of 40862681 is 18626804.

40862681 = T₂₁₃ + T₂₁₄ + ... + T₆₃₃.

It can be written as a sum of positive squares in 2 ways, for example, as 17774656 + 23088025 = 4216^2 + 4805^2 .

It is not a de Polignac number, because 40862681 - 2² = 40862677 is a prime.

It is a super-2 number, since 2×40862681² = 3339517397015522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40862687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96851 + ... + 97271.

It is an arithmetic number, because the mean of its divisors is an integer number (3561891).

Almost surely, 2^40862681 is an apocalyptic number.

It is an amenable number.

40862681 is a deficient number, since it is larger than the sum of its proper divisors (1880011).

40862681 is a wasteful number, since it uses less digits than its factorization.

40862681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 40862681 is about 6392.3924316331. The cubic root of 40862681 is about 344.4363294384.

The spelling of 40862681 in words is "forty million, eight hundred sixty-two thousand, six hundred eighty-one".