420662925 has 36 divisors (see below), whose sum is σ = 769504320. Its totient is φ = 219574560.

The previous prime is 420662899. The next prime is 420662927. The reversal of 420662925 is 529266024.

420662925 is a `hidden beast` number, since 4 + 2 + 0 + 6 + 629 + 25 = 666.

It is not a de Polignac number, because 420662925 - 2⁷ = 420662797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420662925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420662927) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9315 + ... + 30464.

It is an arithmetic number, because the mean of its divisors is an integer number (21375120).

Almost surely, 2^420662925 is an apocalyptic number.

420662925 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420662925 is a deficient number, since it is larger than the sum of its proper divisors (348841395).

420662925 is a wasteful number, since it uses less digits than its factorization.

420662925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39842 (or 39834 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 420662925 is about 20510.0688687288. The cubic root of 420662925 is about 749.2810443573.

The spelling of 420662925 in words is "four hundred twenty million, six hundred sixty-two thousand, nine hundred twenty-five".