3240515478 has 8 divisors (see below), whose sum is σ = 6481030968. Its totient is φ = 1080171824.

The previous prime is 3240515459. The next prime is 3240515489. The reversal of 3240515478 is 8745150423.

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

3240515478 is an admirable number.

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, 270042951 + ... + 270042962.

It is an arithmetic number, because the mean of its divisors is an integer number (810128871).

Almost surely, 2^3240515478 is an apocalyptic number.

3240515478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3240515478 is a wasteful number, since it uses less digits than its factorization.

3240515478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540085918.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 3240515478 is about 56925.5257156225. The cubic root of 3240515478 is about 1479.8057143918.

The spelling of 3240515478 in words is "three billion, two hundred forty million, five hundred fifteen thousand, four hundred seventy-eight".