40468729 has 4 divisors (see below), whose sum is σ = 46249984. Its totient is φ = 34687476.

The previous prime is 40468693. The next prime is 40468741. The reversal of 40468729 is 92786404.

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 40468729 - 2²¹ = 38371577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40468691 and 40468700.

It is not an unprimeable number, because it can be changed into a prime (40468759) 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, 2890617 + ... + 2890630.

It is an arithmetic number, because the mean of its divisors is an integer number (11562496).

Almost surely, 2^40468729 is an apocalyptic number.

It is an amenable number.

40468729 is a deficient number, since it is larger than the sum of its proper divisors (5781255).

40468729 is an equidigital number, since it uses as much as digits as its factorization.

40468729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5781254.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 40468729 is about 6361.5036744468. The cubic root of 40468729 is about 343.3258639361.

The spelling of 40468729 in words is "forty million, four hundred sixty-eight thousand, seven hundred twenty-nine".