40391348 has 12 divisors (see below), whose sum is σ = 71094660. Its totient is φ = 20078592.

The previous prime is 40391339. The next prime is 40391363. The reversal of 40391348 is 84319304.

It can be written as a sum of positive squares in 2 ways, for example, as 30228004 + 10163344 = 5498^2 + 3188^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 28493 + ... + 29876.

It is an arithmetic number, because the mean of its divisors is an integer number (5924555).

Almost surely, 2^40391348 is an apocalyptic number.

It is an amenable number.

40391348 is a deficient number, since it is larger than the sum of its proper divisors (30703312).

40391348 is a wasteful number, since it uses less digits than its factorization.

40391348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58546 (or 58544 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 40391348 is about 6355.4187902923. The cubic root of 40391348 is about 343.1068977503.

The spelling of 40391348 in words is "forty million, three hundred ninety-one thousand, three hundred forty-eight".