40601951 has 4 divisors (see below), whose sum is σ = 43725192. Its totient is φ = 37478712.

The previous prime is 40601941. The next prime is 40601963. The reversal of 40601951 is 15910604.

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

It is a cyclic number.

It is not a de Polignac number, because 40601951 - 2⁶ = 40601887 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 40601951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40601921) 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, 1561601 + ... + 1561626.

It is an arithmetic number, because the mean of its divisors is an integer number (10931298).

Almost surely, 2^40601951 is an apocalyptic number.

40601951 is a deficient number, since it is larger than the sum of its proper divisors (3123241).

40601951 is a wasteful number, since it uses less digits than its factorization.

40601951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123240.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 40601951 is about 6371.9660231360. The cubic root of 40601951 is about 343.7021912133.

The spelling of 40601951 in words is "forty million, six hundred one thousand, nine hundred fifty-one".