40628873 has 8 divisors (see below), whose sum is σ = 41099400. Its totient is φ = 40161280.

The previous prime is 40628869. The next prime is 40628881. The reversal of 40628873 is 37882604.

It can be written as a sum of positive squares in 4 ways, for example, as 12411529 + 28217344 = 3523^2 + 5312^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40628873 - 2² = 40628869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40628813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37763 + ... + 38823.

It is an arithmetic number, because the mean of its divisors is an integer number (5137425).

Almost surely, 2^40628873 is an apocalyptic number.

It is an amenable number.

40628873 is a deficient number, since it is larger than the sum of its proper divisors (470527).

40628873 is a wasteful number, since it uses less digits than its factorization.

40628873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 40628873 is about 6374.0782078666. The cubic root of 40628873 is about 343.7781408147.

The spelling of 40628873 in words is "forty million, six hundred twenty-eight thousand, eight hundred seventy-three".