40403729294 has 4 divisors (see below), whose sum is σ = 60605593944. Its totient is φ = 20201864646.

The previous prime is 40403729281. The next prime is 40403729297. The reversal of 40403729294 is 49292730404.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40403729294² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40403729297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100932322 + ... + 10100932325.

It is an arithmetic number, because the mean of its divisors is an integer number (15151398486).

Almost surely, 2^40403729294 is an apocalyptic number.

40403729294 is a deficient number, since it is larger than the sum of its proper divisors (20201864650).

40403729294 is a wasteful number, since it uses less digits than its factorization.

40403729294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20201864649.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 40403729294 in words is "forty billion, four hundred three million, seven hundred twenty-nine thousand, two hundred ninety-four".