420397862 has 32 divisors (see below), whose sum is σ = 692841600. Its totient is φ = 190425088.

The previous prime is 420397853. The next prime is 420397897. The reversal of 420397862 is 268793024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 584339 + ... + 585057.

It is an arithmetic number, because the mean of its divisors is an integer number (21651300).

Almost surely, 2^420397862 is an apocalyptic number.

420397862 is a deficient number, since it is larger than the sum of its proper divisors (272443738).

420397862 is a wasteful number, since it uses less digits than its factorization.

420397862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360.

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

The square root of 420397862 is about 20503.6060730789. The cubic root of 420397862 is about 749.1236353418.

The spelling of 420397862 in words is "four hundred twenty million, three hundred ninety-seven thousand, eight hundred sixty-two".