420655652 has 12 divisors (see below), whose sum is σ = 744419340. Its totient is φ = 207964416.

The previous prime is 420655639. The next prime is 420655657. The reversal of 420655652 is 256556024.

It can be written as a sum of positive squares in 2 ways, for example, as 273373156 + 147282496 = 16534^2 + 12136^2 .

It is not an unprimeable number, because it can be changed into a prime (420655657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590453 + ... + 591164.

It is an arithmetic number, because the mean of its divisors is an integer number (62034945).

Almost surely, 2^420655652 is an apocalyptic number.

It is an amenable number.

420655652 is a deficient number, since it is larger than the sum of its proper divisors (323763688).

420655652 is a wasteful number, since it uses less digits than its factorization.

420655652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181710 (or 1181708 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 420655652 is about 20509.8915648036. The cubic root of 420655652 is about 749.2767261315.

The spelling of 420655652 in words is "four hundred twenty million, six hundred fifty-five thousand, six hundred fifty-two".