3420845672 has 16 divisors (see below), whose sum is σ = 6791385060. Its totient is φ = 1609809664.

The previous prime is 3420845663. The next prime is 3420845719. The reversal of 3420845672 is 2765480243.

It can be written as a sum of positive squares in 2 ways, for example, as 3354031396 + 66814276 = 57914^2 + 8174^2 .

It is a super-2 number, since 2×3420845672² = 23404370223282263168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12576503 + ... + 12576774.

Almost surely, 2^3420845672 is an apocalyptic number.

It is an amenable number.

3420845672 is a deficient number, since it is larger than the sum of its proper divisors (3370539388).

3420845672 is a wasteful number, since it uses less digits than its factorization.

3420845672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25153300 (or 25153296 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The square root of 3420845672 is about 58487.9959649841. The cubic root of 3420845672 is about 1506.7614276770.

The spelling of 3420845672 in words is "three billion, four hundred twenty million, eight hundred forty-five thousand, six hundred seventy-two".