40473723 has 4 divisors (see below), whose sum is σ = 53964968. Its totient is φ = 26982480.

The previous prime is 40473709. The next prime is 40473739. The reversal of 40473723 is 32737404.

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

It is not a de Polignac number, because 40473723 - 2⁶ = 40473659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40473703) 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, 6745618 + ... + 6745623.

It is an arithmetic number, because the mean of its divisors is an integer number (13491242).

Almost surely, 2^40473723 is an apocalyptic number.

40473723 is a deficient number, since it is larger than the sum of its proper divisors (13491245).

40473723 is a wasteful number, since it uses less digits than its factorization.

40473723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13491244.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 40473723 is about 6361.8961795993. The cubic root of 40473723 is about 343.3399859416.

The spelling of 40473723 in words is "forty million, four hundred seventy-three thousand, seven hundred twenty-three".