420687386 has 8 divisors (see below), whose sum is σ = 721178400. Its totient is φ = 180294588.

The previous prime is 420687383. The next prime is 420687413. The reversal of 420687386 is 683786024.

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

It is not an unprimeable number, because it can be changed into a prime (420687383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15024536 + ... + 15024563.

It is an arithmetic number, because the mean of its divisors is an integer number (90147300).

Almost surely, 2^420687386 is an apocalyptic number.

420687386 is a deficient number, since it is larger than the sum of its proper divisors (300491014).

420687386 is a wasteful number, since it uses less digits than its factorization.

420687386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30049108.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 420687386 is about 20510.6651769269. The cubic root of 420687386 is about 749.2955673140.

The spelling of 420687386 in words is "four hundred twenty million, six hundred eighty-seven thousand, three hundred eighty-six".