40038470 has 8 divisors (see below), whose sum is σ = 72069264. Its totient is φ = 16015384.

The previous prime is 40038443. The next prime is 40038497. The reversal of 40038470 is 7483004.

It is an interprime number because it is at equal distance from previous prime (40038443) and next prime (40038497).

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

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, 2001914 + ... + 2001933.

It is an arithmetic number, because the mean of its divisors is an integer number (9008658).

Almost surely, 2^40038470 is an apocalyptic number.

40038470 is a deficient number, since it is larger than the sum of its proper divisors (32030794).

40038470 is a wasteful number, since it uses less digits than its factorization.

40038470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003854.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 40038470 is about 6327.5959099803. The cubic root of 40038470 is about 342.1047921638.

The spelling of 40038470 in words is "forty million, thirty-eight thousand, four hundred seventy".