40629437 has 4 divisors (see below), whose sum is σ = 41940096. Its totient is φ = 39318780.

The previous prime is 40629427. The next prime is 40629487. The reversal of 40629437 is 73492604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40629437 - 2⁶ = 40629373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40629397 and 40629406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40629427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655283 + ... + 655344.

It is an arithmetic number, because the mean of its divisors is an integer number (10485024).

Almost surely, 2^40629437 is an apocalyptic number.

It is an amenable number.

40629437 is a deficient number, since it is larger than the sum of its proper divisors (1310659).

40629437 is a wasteful number, since it uses less digits than its factorization.

40629437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310658.

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

The square root of 40629437 is about 6374.1224494043. The cubic root of 40629437 is about 343.7797315551.

The spelling of 40629437 in words is "forty million, six hundred twenty-nine thousand, four hundred thirty-seven".