40939515 has 12 divisors (see below), whose sum is σ = 70961904. Its totient is φ = 21834384.

The previous prime is 40939487. The next prime is 40939537. The reversal of 40939515 is 51593904.

It is not a de Polignac number, because 40939515 - 2¹¹ = 40937467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40939515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 454839 + ... + 454928.

It is an arithmetic number, because the mean of its divisors is an integer number (5913492).

Almost surely, 2^40939515 is an apocalyptic number.

40939515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40939515 is a deficient number, since it is larger than the sum of its proper divisors (30022389).

40939515 is a wasteful number, since it uses less digits than its factorization.

40939515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909778 (or 909775 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 40939515 is about 6398.3994092273. The cubic root of 40939515 is about 344.6520752045.

The spelling of 40939515 in words is "forty million, nine hundred thirty-nine thousand, five hundred fifteen".