3900400852 has 6 divisors (see below), whose sum is σ = 6825701498. Its totient is φ = 1950200424.

The previous prime is 3900400837. The next prime is 3900400853. The reversal of 3900400852 is 2580040093.

It can be written as a sum of positive squares in only one way, i.e., 2716077456 + 1184323396 = 52116^2 + 34414^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900400853) 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 as a sum of consecutive naturals, namely, 487550103 + ... + 487550110.

Almost surely, 2^3900400852 is an apocalyptic number.

It is an amenable number.

3900400852 is a deficient number, since it is larger than the sum of its proper divisors (2925300646).

3900400852 is a wasteful number, since it uses less digits than its factorization.

3900400852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975100217 (or 975100215 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 3900400852 is about 62453.1892860565. The cubic root of 3900400852 is about 1574.1148434563.

The spelling of 3900400852 in words is "three billion, nine hundred million, four hundred thousand, eight hundred fifty-two".