421245000 has 480 divisors, whose sum is σ = 1666716480. Its totient is φ = 95040000.

The previous prime is 421244969. The next prime is 421245053. The reversal of 421245000 is 542124.

421245000 is a `hidden beast` number, since 4 + 212 + 450 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 11384982 + ... + 11385018.

It is an arithmetic number, because the mean of its divisors is an integer number (3472326).

Almost surely, 2^421245000 is an apocalyptic number.

421245000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421245000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833358240).

421245000 is an abundant number, since it is smaller than the sum of its proper divisors (1245471480).

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

421245000 is a wasteful number, since it uses less digits than its factorization.

421245000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 421245000 is about 20524.2539450281. The cubic root of 421245000 is about 749.6264806753.

Adding to 421245000 its reverse (542124), we get a palindrome (421787124).

The spelling of 421245000 in words is "four hundred twenty-one million, two hundred forty-five thousand".