420222487 has 8 divisors (see below), whose sum is σ = 443658800. Its totient is φ = 396918144.

The previous prime is 420222463. The next prime is 420222503. The reversal of 420222487 is 784222024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420222487 - 2¹⁹ = 419698199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420222427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26412 + ... + 39217.

It is an arithmetic number, because the mean of its divisors is an integer number (55457350).

Almost surely, 2^420222487 is an apocalyptic number.

420222487 is a deficient number, since it is larger than the sum of its proper divisors (23436313).

420222487 is a wasteful number, since it uses less digits than its factorization.

420222487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65985.

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 420222487 is about 20499.3289402361. The cubic root of 420222487 is about 749.0194516289.

The spelling of 420222487 in words is "four hundred twenty million, two hundred twenty-two thousand, four hundred eighty-seven".