420902573 has 16 divisors (see below), whose sum is σ = 545301120. Its totient is φ = 315493056.

The previous prime is 420902567. The next prime is 420902591. The reversal of 420902573 is 375209024.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 420902573 - 2⁴ = 420902557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420902543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119990 + ... + 123447.

It is an arithmetic number, because the mean of its divisors is an integer number (34081320).

Almost surely, 2^420902573 is an apocalyptic number.

It is an amenable number.

420902573 is a deficient number, since it is larger than the sum of its proper divisors (124398547).

420902573 is a wasteful number, since it uses less digits than its factorization.

420902573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243476.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 420902573 is about 20515.9102405913. The cubic root of 420902573 is about 749.4233036384.

The spelling of 420902573 in words is "four hundred twenty million, nine hundred two thousand, five hundred seventy-three".