420274087 has 8 divisors (see below), whose sum is σ = 423631296. Its totient is φ = 416929632.

The previous prime is 420274081. The next prime is 420274103. The reversal of 420274087 is 780472024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420274087 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 (420274081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69393 + ... + 75205.

It is an arithmetic number, because the mean of its divisors is an integer number (52953912).

Almost surely, 2^420274087 is an apocalyptic number.

420274087 is a deficient number, since it is larger than the sum of its proper divisors (3357209).

420274087 is a wasteful number, since it uses less digits than its factorization.

420274087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6377.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 420274087 is about 20500.5874793870. The cubic root of 420274087 is about 749.0501082636.

The spelling of 420274087 in words is "four hundred twenty million, two hundred seventy-four thousand, eighty-seven".