40879487 has 24 divisors (see below), whose sum is σ = 48275808. Its totient is φ = 34499520.

The previous prime is 40879481. The next prime is 40879499. The reversal of 40879487 is 78497804.

It is not a de Polignac number, because 40879487 - 2⁴ = 40879471 is a prime.

It is a super-2 number, since 2×40879487² = 3342264914766338, 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 (40879481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102773 + ... + 103169.

It is an arithmetic number, because the mean of its divisors is an integer number (2011492).

Almost surely, 2^40879487 is an apocalyptic number.

40879487 is a deficient number, since it is larger than the sum of its proper divisors (7396321).

40879487 is a wasteful number, since it uses less digits than its factorization.

With its successor (40879488) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (468).

With its successor (40879488) it forms an eRAP, since the sums of their prime factors are consecutive (479 and 480).

40879487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 40879487 is about 6393.7068278112. The cubic root of 40879487 is about 344.4835428812.

The spelling of 40879487 in words is "forty million, eight hundred seventy-nine thousand, four hundred eighty-seven".