40729436 has 12 divisors (see below), whose sum is σ = 77756280. Its totient is φ = 18513360.

The previous prime is 40729417. The next prime is 40729453. The reversal of 40729436 is 63492704.

It is a junction number, because it is equal to n+sod(n) for n = 40729396 and 40729405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462791 + ... + 462878.

It is an arithmetic number, because the mean of its divisors is an integer number (6479690).

Almost surely, 2^40729436 is an apocalyptic number.

It is an amenable number.

40729436 is a deficient number, since it is larger than the sum of its proper divisors (37026844).

40729436 is a wasteful number, since it uses less digits than its factorization.

40729436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925684 (or 925682 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 40729436 is about 6381.9617673565. The cubic root of 40729436 is about 344.0615425317.

The spelling of 40729436 in words is "forty million, seven hundred twenty-nine thousand, four hundred thirty-six".