421662048 has 24 divisors (see below), whose sum is σ = 1106863128. Its totient is φ = 140553984.

The previous prime is 421662029. The next prime is 421662049. The reversal of 421662048 is 840266124.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421662049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2196061 + ... + 2196252.

It is an arithmetic number, because the mean of its divisors is an integer number (46119297).

Almost surely, 2^421662048 is an apocalyptic number.

421662048 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

421662048 is an abundant number, since it is smaller than the sum of its proper divisors (685201080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421662048 is a wasteful number, since it uses less digits than its factorization.

421662048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392326 (or 4392318 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 421662048 is about 20534.4113136949. The cubic root of 421662048 is about 749.8737849831.

The spelling of 421662048 in words is "four hundred twenty-one million, six hundred sixty-two thousand, forty-eight".