421552032 has 48 divisors (see below), whose sum is σ = 1207174752. Its totient is φ = 127742720.

The previous prime is 421552013. The next prime is 421552039. The reversal of 421552032 is 230255124.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×421552032² = 355412231366658048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 421551993 and 421552011.

It is not an unprimeable number, because it can be changed into a prime (421552039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198543 + ... + 200654.

It is an arithmetic number, because the mean of its divisors is an integer number (25149474).

Almost surely, 2^421552032 is an apocalyptic number.

It is an amenable number.

421552032 is an abundant number, since it is smaller than the sum of its proper divisors (785622720).

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

421552032 is a wasteful number, since it uses less digits than its factorization.

421552032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399221 (or 399213 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 421552032 is about 20531.7323185356. The cubic root of 421552032 is about 749.8085626954.

The spelling of 421552032 in words is "four hundred twenty-one million, five hundred fifty-two thousand, thirty-two".