40345244 has 12 divisors (see below), whose sum is σ = 72512664. Its totient is φ = 19627344.

The previous prime is 40345231. The next prime is 40345273. The reversal of 40345244 is 44254304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136154 + ... + 136449.

It is an arithmetic number, because the mean of its divisors is an integer number (6042722).

Almost surely, 2^40345244 is an apocalyptic number.

It is an amenable number.

40345244 is a deficient number, since it is larger than the sum of its proper divisors (32167420).

40345244 is a wasteful number, since it uses less digits than its factorization.

40345244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272644 (or 272642 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 40345244 is about 6351.7906136774. The cubic root of 40345244 is about 342.9763035873.

Adding to 40345244 its reverse (44254304), we get a palindrome (84599548).

The spelling of 40345244 in words is "forty million, three hundred forty-five thousand, two hundred forty-four".