3420495225 has 81 divisors (see below), whose sum is σ = 7139547597. Its totient is φ = 1560847680.

The previous prime is 3420495203. The next prime is 3420495241. The reversal of 3420495225 is 5225940243.

The square root of 3420495225 is 58485.

It is a perfect power (a square), and thus also a powerful number.

3420495225 is a `hidden beast` number, since 3 + 420 + 4 + 9 + 5 + 225 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1176009849 + 2244485376 = 34293^2 + 47376^2 .

It is not a de Polignac number, because 3420495225 - 2⁹ = 3420494713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3420495225.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 6140647 + ... + 6141203.

Almost surely, 2^3420495225 is an apocalyptic number.

3420495225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3420495225 is the 58485-th square number.

3420495225 is the 29243-rd centered octagonal number.

It is an amenable number.

3420495225 is an abundant number, since it is smaller than the sum of its proper divisors (3719052372).

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

3420495225 is an equidigital number, since it uses as much as digits as its factorization.

3420495225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The cubic root of 3420495225 is about 1506.7099727537.

Multiplying 3420495225 by its sum of digits (36), we get a square (123137828100 = 350910²).

The spelling of 3420495225 in words is "three billion, four hundred twenty million, four hundred ninety-five thousand, two hundred twenty-five".