40869775 has 6 divisors (see below), whose sum is σ = 50678552. Its totient is φ = 32695800.

The previous prime is 40869757. The next prime is 40869791. The reversal of 40869775 is 57796804.

It is a happy number.

It is not a de Polignac number, because 40869775 - 2¹⁵ = 40837007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 817371 + ... + 817420.

Almost surely, 2^40869775 is an apocalyptic number.

40869775 is a deficient number, since it is larger than the sum of its proper divisors (9808777).

40869775 is a wasteful number, since it uses less digits than its factorization.

40869775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634801 (or 1634796 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 40869775 is about 6392.9472858768. The cubic root of 40869775 is about 344.4562603377.

It can be divided in two parts, 4086 and 9775, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 40869775 in words is "forty million, eight hundred sixty-nine thousand, seven hundred seventy-five".