40446385 has 8 divisors (see below), whose sum is σ = 55469376. Its totient is φ = 27734640.

The previous prime is 40446361. The next prime is 40446409. The reversal of 40446385 is 58364404.

It is an interprime number because it is at equal distance from previous prime (40446361) and next prime (40446409).

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

It is not a de Polignac number, because 40446385 - 2⁷ = 40446257 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 40446385.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577771 + ... + 577840.

It is an arithmetic number, because the mean of its divisors is an integer number (6933672).

Almost surely, 2^40446385 is an apocalyptic number.

It is an amenable number.

40446385 is a deficient number, since it is larger than the sum of its proper divisors (15022991).

40446385 is a wasteful number, since it uses less digits than its factorization.

40446385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155623.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 40446385 is about 6359.7472434052. The cubic root of 40446385 is about 343.2626654652.

The spelling of 40446385 in words is "forty million, four hundred forty-six thousand, three hundred eighty-five".