3446145872 has 20 divisors (see below), whose sum is σ = 7190516340. Its totient is φ = 1590528768.

The previous prime is 3446145851. The next prime is 3446145877. The reversal of 3446145872 is 2785416443.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1675756096 + 1770389776 = 40936^2 + 42076^2 .

It is a super-2 number, since 2×3446145872² = 23751842742205280768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3446145877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8283797 + ... + 8284212.

It is an arithmetic number, because the mean of its divisors is an integer number (359525817).

Almost surely, 2^3446145872 is an apocalyptic number.

It is an amenable number.

3446145872 is an abundant number, since it is smaller than the sum of its proper divisors (3744370468).

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

3446145872 is a wasteful number, since it uses less digits than its factorization.

3446145872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16568030 (or 16568024 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 3446145872 is about 58703.8829380136. The cubic root of 3446145872 is about 1510.4669216681.

The spelling of 3446145872 in words is "three billion, four hundred forty-six million, one hundred forty-five thousand, eight hundred seventy-two".