3728126478 has 8 divisors (see below), whose sum is σ = 7456252968. Its totient is φ = 1242708824.

The previous prime is 3728126471. The next prime is 3728126491. The reversal of 3728126478 is 8746218273.

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

3728126478 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728126471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310677201 + ... + 310677212.

It is an arithmetic number, because the mean of its divisors is an integer number (932031621).

Almost surely, 2^3728126478 is an apocalyptic number.

3728126478 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.

3728126478 is a wasteful number, since it uses less digits than its factorization.

3728126478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621354418.

The product of its digits is 903168, while the sum is 48.

The square root of 3728126478 is about 61058.3858122699. The cubic root of 3728126478 is about 1550.5896442707.

The spelling of 3728126478 in words is "three billion, seven hundred twenty-eight million, one hundred twenty-six thousand, four hundred seventy-eight".