40387379 has 8 divisors (see below), whose sum is σ = 42239232. Its totient is φ = 38543560.

The previous prime is 40387357. The next prime is 40387381. The reversal of 40387379 is 97378304.

40387379 = T₁₂₂ + T₁₂₃ + ... + T₆₂₄.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40387379 is a prime.

It is a super-2 number, since 2×40387379² = 3262280764979282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40387309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9824 + ... + 13314.

It is an arithmetic number, because the mean of its divisors is an integer number (5279904).

Almost surely, 2^40387379 is an apocalyptic number.

40387379 is a deficient number, since it is larger than the sum of its proper divisors (1851853).

40387379 is a wasteful number, since it uses less digits than its factorization.

40387379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 40387379 is about 6355.1065293982. The cubic root of 40387379 is about 343.0956590737.

The spelling of 40387379 in words is "forty million, three hundred eighty-seven thousand, three hundred seventy-nine".