420269387 has 8 divisors (see below), whose sum is σ = 434073600. Its totient is φ = 406480680.

The previous prime is 420269371. The next prime is 420269413. The reversal of 420269387 is 783962024.

It is a happy number.

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

It is not a de Polignac number, because 420269387 - 2⁴ = 420269371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420269287) 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, 81158 + ... + 86180.

It is an arithmetic number, because the mean of its divisors is an integer number (54259200).

Almost surely, 2^420269387 is an apocalyptic number.

420269387 is a deficient number, since it is larger than the sum of its proper divisors (13804213).

420269387 is a wasteful number, since it uses less digits than its factorization.

420269387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7753.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 420269387 is about 20500.4728482052. The cubic root of 420269387 is about 749.0473159996.

The spelling of 420269387 in words is "four hundred twenty million, two hundred sixty-nine thousand, three hundred eighty-seven".