40858769 has 16 divisors (see below), whose sum is σ = 49838976. Its totient is φ = 32697600.

The previous prime is 40858747. The next prime is 40858771. The reversal of 40858769 is 96785804.

It is not a de Polignac number, because 40858769 - 2¹² = 40854673 is a prime.

It is a super-2 number, since 2×40858769² = 3338878008390722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40858799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14279 + ... + 16899.

It is an arithmetic number, because the mean of its divisors is an integer number (3114936).

Almost surely, 2^40858769 is an apocalyptic number.

It is an amenable number.

40858769 is a deficient number, since it is larger than the sum of its proper divisors (8980207).

40858769 is a wasteful number, since it uses less digits than its factorization.

40858769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 40858769 is about 6392.0864355858. The cubic root of 40858769 is about 344.4253375188.

The spelling of 40858769 in words is "forty million, eight hundred fifty-eight thousand, seven hundred sixty-nine".