40671015 has 64 divisors (see below), whose sum is σ = 84713472. Its totient is φ = 16156800.

The previous prime is 40671011. The next prime is 40671019. The reversal of 40671015 is 51017604.

It is an interprime number because it is at equal distance from previous prime (40671011) and next prime (40671019).

It is not a de Polignac number, because 40671015 - 2² = 40671011 is a prime.

It is a super-2 number, since 2×40671015² = 3308262922260450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40671011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25800 + ... + 27330.

It is an arithmetic number, because the mean of its divisors is an integer number (1323648).

Almost surely, 2^40671015 is an apocalyptic number.

40671015 is an abundant number, since it is smaller than the sum of its proper divisors (44042457).

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

40671015 is a wasteful number, since it uses less digits than its factorization.

40671015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 40671015 is about 6377.3830839930. The cubic root of 40671015 is about 343.8969601928.

Adding to 40671015 its reverse (51017604), we get a palindrome (91688619).

The spelling of 40671015 in words is "forty million, six hundred seventy-one thousand, fifteen".