40864029 has 4 divisors (see below), whose sum is σ = 54485376. Its totient is φ = 27242684.

The previous prime is 40864001. The next prime is 40864051. The reversal of 40864029 is 92046804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40864029 - 2⁹ = 40863517 is a prime.

It is a super-2 number, since 2×40864029² = 3339737732225682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40864069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6810669 + ... + 6810674.

It is an arithmetic number, because the mean of its divisors is an integer number (13621344).

Almost surely, 2^40864029 is an apocalyptic number.

It is an amenable number.

40864029 is a deficient number, since it is larger than the sum of its proper divisors (13621347).

40864029 is a wasteful number, since it uses less digits than its factorization.

40864029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13621346.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 40864029 is about 6392.4978685957. The cubic root of 40864029 is about 344.4401168801.

The spelling of 40864029 in words is "forty million, eight hundred sixty-four thousand, twenty-nine".