420772125 has 32 divisors (see below), whose sum is σ = 701760384. Its totient is φ = 223900800.

The previous prime is 420772123. The next prime is 420772139. The reversal of 420772125 is 521277024.

It is not a de Polignac number, because 420772125 - 2¹ = 420772123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420772092 and 420772101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420772123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210129 + ... + 212121.

It is an arithmetic number, because the mean of its divisors is an integer number (21930012).

Almost surely, 2^420772125 is an apocalyptic number.

It is an amenable number.

420772125 is a deficient number, since it is larger than the sum of its proper divisors (280988259).

420772125 is a wasteful number, since it uses less digits than its factorization.

420772125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 420772125 is about 20512.7308030891. The cubic root of 420772125 is about 749.3458741027.

The spelling of 420772125 in words is "four hundred twenty million, seven hundred seventy-two thousand, one hundred twenty-five".