40629601 has 4 divisors (see below), whose sum is σ = 40646704. Its totient is φ = 40612500.

The previous prime is 40629593. The next prime is 40629607. The reversal of 40629601 is 10692604.

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 3-Lehmer number, since φ(40629601) divides (40629601-1)³.

It is a cyclic number.

It is not a de Polignac number, because 40629601 - 2³ = 40629593 is a prime.

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 40629601.

It is not an unprimeable number, because it can be changed into a prime (40629607) 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, 4275 + ... + 9976.

It is an arithmetic number, because the mean of its divisors is an integer number (10161676).

It is a Poulet number, since it divides 2^40629600-1.

Almost surely, 2^40629601 is an apocalyptic number.

It is an amenable number.

40629601 is a deficient number, since it is larger than the sum of its proper divisors (17103).

40629601 is a wasteful number, since it uses less digits than its factorization.

40629601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17102.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 40629601 is about 6374.1353139073. The cubic root of 40629601 is about 343.7801941081.

The spelling of 40629601 in words is "forty million, six hundred twenty-nine thousand, six hundred one".