3890435394 has 8 divisors (see below), whose sum is σ = 7780870800. Its totient is φ = 1296811796.

The previous prime is 3890435389. The next prime is 3890435399. The reversal of 3890435394 is 4935340983.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3890435389) and next prime (3890435399).

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

3890435394 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3890435399) 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, 324202944 + ... + 324202955.

It is an arithmetic number, because the mean of its divisors is an integer number (972608850).

Almost surely, 2^3890435394 is an apocalyptic number.

3890435394 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.

3890435394 is a wasteful number, since it uses less digits than its factorization.

3890435394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648405904.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The square root of 3890435394 is about 62373.3548400276. The cubic root of 3890435394 is about 1572.7730878465.

The spelling of 3890435394 in words is "three billion, eight hundred ninety million, four hundred thirty-five thousand, three hundred ninety-four".