421620485 has 32 divisors (see below), whose sum is σ = 629379072. Its totient is φ = 266388480.

The previous prime is 421620449. The next prime is 421620533. The reversal of 421620485 is 584026124.

421620485 = T₄₄₃ + T₄₄₄ + ... + T₁₃₇₇.

It is not a de Polignac number, because 421620485 - 2⁸ = 421620229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5189 + ... + 29498.

It is an arithmetic number, because the mean of its divisors is an integer number (19668096).

Almost surely, 2^421620485 is an apocalyptic number.

It is an amenable number.

421620485 is a deficient number, since it is larger than the sum of its proper divisors (207758587).

421620485 is a wasteful number, since it uses less digits than its factorization.

421620485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34733.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 421620485 is about 20533.3992558466. The cubic root of 421620485 is about 749.8491459557.

The spelling of 421620485 in words is "four hundred twenty-one million, six hundred twenty thousand, four hundred eighty-five".