40073629 has 4 divisors (see below), whose sum is σ = 40086684. Its totient is φ = 40060576.

The previous prime is 40073623. The next prime is 40073633. The reversal of 40073629 is 92637004.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 27984100 + 12089529 = 5290^2 + 3477^2 .

It is a cyclic number.

It is not a de Polignac number, because 40073629 - 2¹³ = 40065437 is a prime.

It is a pancake number, because a pancake can be divided into 40073629 parts by 8952 straight cuts.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40073629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40073623) 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, 879 + ... + 8995.

It is an arithmetic number, because the mean of its divisors is an integer number (10021671).

Almost surely, 2^40073629 is an apocalyptic number.

It is an amenable number.

40073629 is a deficient number, since it is larger than the sum of its proper divisors (13055).

40073629 is an equidigital number, since it uses as much as digits as its factorization.

40073629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13054.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 40073629 is about 6330.3735276838. The cubic root of 40073629 is about 342.2049004127.

The spelling of 40073629 in words is "forty million, seventy-three thousand, six hundred twenty-nine".