3728871390 has 64 divisors (see below), whose sum is σ = 9225964800. Its totient is φ = 964088064.

The previous prime is 3728871373. The next prime is 3728871397. The reversal of 3728871390 is 931788273.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728871397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114781 + ... + 143639.

It is an arithmetic number, because the mean of its divisors is an integer number (144155700).

Almost surely, 2^3728871390 is an apocalyptic number.

3728871390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3728871390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4612982400).

3728871390 is an abundant number, since it is smaller than the sum of its proper divisors (5497093410).

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

3728871390 is a wasteful number, since it uses less digits than its factorization.

3728871390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29001.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 3728871390 is about 61064.4855050790. The cubic root of 3728871390 is about 1550.6929111456.

The spelling of 3728871390 in words is "three billion, seven hundred twenty-eight million, eight hundred seventy-one thousand, three hundred ninety".