3942898445 has 4 divisors (see below), whose sum is σ = 4731478140. Its totient is φ = 3154318752.

The previous prime is 3942898403. The next prime is 3942898469. The reversal of 3942898445 is 5448982493.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5448982493 = 1619 ⋅3365647.

It can be written as a sum of positive squares in 2 ways, for example, as 710862244 + 3232036201 = 26662^2 + 56851^2 .

It is a cyclic number.

It is not a de Polignac number, because 3942898445 - 2²² = 3938704141 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 394289840 + ... + 394289849.

It is an arithmetic number, because the mean of its divisors is an integer number (1182869535).

Almost surely, 2^3942898445 is an apocalyptic number.

It is an amenable number.

3942898445 is a deficient number, since it is larger than the sum of its proper divisors (788579695).

3942898445 is an equidigital number, since it uses as much as digits as its factorization.

3942898445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788579694.

The product of its digits is 9953280, while the sum is 56.

The square root of 3942898445 is about 62792.5030955129. The cubic root of 3942898445 is about 1579.8112316541.

The spelling of 3942898445 in words is "three billion, nine hundred forty-two million, eight hundred ninety-eight thousand, four hundred forty-five".