420449464 has 8 divisors (see below), whose sum is σ = 788342760. Its totient is φ = 210224728.

The previous prime is 420449441. The next prime is 420449467. The reversal of 420449464 is 464944024.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420449467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26278084 + ... + 26278099.

It is an arithmetic number, because the mean of its divisors is an integer number (98542845).

Almost surely, 2^420449464 is an apocalyptic number.

It is an amenable number.

420449464 is a deficient number, since it is larger than the sum of its proper divisors (367893296).

420449464 is a wasteful number, since it uses less digits than its factorization.

420449464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52556189 (or 52556185 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The square root of 420449464 is about 20504.8643984787. The cubic root of 420449464 is about 749.1542846384.

The spelling of 420449464 in words is "four hundred twenty million, four hundred forty-nine thousand, four hundred sixty-four".