40348390 has 16 divisors (see below), whose sum is σ = 73036080. Its totient is φ = 16048480.

The previous prime is 40348379. The next prime is 40348409. The reversal of 40348390 is 9384304.

It is a congruent number.

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, 9481 + ... + 13060.

It is an arithmetic number, because the mean of its divisors is an integer number (4564755).

Almost surely, 2^40348390 is an apocalyptic number.

40348390 is a deficient number, since it is larger than the sum of its proper divisors (32687690).

40348390 is a wasteful number, since it uses less digits than its factorization.

40348390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22727.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 40348390 is about 6352.0382555523. The cubic root of 40348390 is about 342.9852181069.

The spelling of 40348390 in words is "forty million, three hundred forty-eight thousand, three hundred ninety".