40971429 has 48 divisors (see below), whose sum is σ = 65894400. Its totient is φ = 24429600.

The previous prime is 40971407. The next prime is 40971433. The reversal of 40971429 is 92417904.

It is not a de Polignac number, because 40971429 - 2¹⁷ = 40840357 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40971393 and 40971402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40971499) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 312694 + ... + 312824.

It is an arithmetic number, because the mean of its divisors is an integer number (1372800).

Almost surely, 2^40971429 is an apocalyptic number.

It is an amenable number.

40971429 is a deficient number, since it is larger than the sum of its proper divisors (24922971).

40971429 is a wasteful number, since it uses less digits than its factorization.

40971429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 243 counting only the distinct ones).

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

The square root of 40971429 is about 6400.8928283482. The cubic root of 40971429 is about 344.7416086658.

The spelling of 40971429 in words is "forty million, nine hundred seventy-one thousand, four hundred twenty-nine".