40651379 has 4 divisors (see below), whose sum is σ = 41258184. Its totient is φ = 40044576.

The previous prime is 40651361. The next prime is 40651409. The reversal of 40651379 is 97315604.

40651379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40651379 is a prime.

It is a super-2 number, since 2×40651379² = 3305069229203282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40651309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303302 + ... + 303435.

It is an arithmetic number, because the mean of its divisors is an integer number (10314546).

Almost surely, 2^40651379 is an apocalyptic number.

40651379 is a deficient number, since it is larger than the sum of its proper divisors (606805).

40651379 is an equidigital number, since it uses as much as digits as its factorization.

40651379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606804.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 40651379 is about 6375.8433951909. The cubic root of 40651379 is about 343.8416067038.

The spelling of 40651379 in words is "forty million, six hundred fifty-one thousand, three hundred seventy-nine".