40471929 has 6 divisors (see below), whose sum is σ = 58459466. Its totient is φ = 26981280.

The previous prime is 40471903. The next prime is 40471933. The reversal of 40471929 is 92917404.

It can be written as a sum of positive squares in only one way, i.e., 29680704 + 10791225 = 5448^2 + 3285^2 .

It is not a de Polignac number, because 40471929 - 2⁵ = 40471897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40471893 and 40471902.

It is not an unprimeable number, because it can be changed into a prime (40471429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2248432 + ... + 2248449.

Almost surely, 2^40471929 is an apocalyptic number.

It is an amenable number.

40471929 is a deficient number, since it is larger than the sum of its proper divisors (17987537).

40471929 is a wasteful number, since it uses less digits than its factorization.

40471929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496887 (or 4496884 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 40471929 is about 6361.7551823377. The cubic root of 40471929 is about 343.3349130121.

It can be divided in two parts, 40 and 471929, that added together give a square (471969 = 687²).

The spelling of 40471929 in words is "forty million, four hundred seventy-one thousand, nine hundred twenty-nine".