3906250000 has 65 divisors (see below), whose sum is σ = 9460449211. Its totient is φ = 1562500000.

The previous prime is 3906249973. The next prime is 3906250039. The reversal of 3906250000 is 526093.

The square root of 3906250000 is 62500.

It is a perfect power (a square, a biquadrate), and thus also a powerful number.

It can be written as a sum of positive squares in 6 ways, for example, as 2210128144 + 1696121856 = 47012^2 + 41184^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a nialpdrome in base 5.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 12 ways as a sum of consecutive naturals, for example, 781249998 + ... + 781250002.

Almost surely, 2^3906250000 is an apocalyptic number.

3906250000 is the 62500-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3906250000

3906250000 is an abundant number, since it is smaller than the sum of its proper divisors (5554199211).

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

3906250000 is an frugal number, since it uses more digits than its factorization.

3906250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 7 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The cubic root of 3906250000 is about 1574.9013123686.

Multiplying 3906250000 by its sum of digits (25), we get a square (97656250000 = 312500²).

3906250000 divided by its sum of digits (25) gives a square (156250000 = 12500²).

Adding to 3906250000 its reverse (526093), we get a palindrome (3906776093).

The spelling of 3906250000 in words is "three billion, nine hundred six million, two hundred fifty thousand".