421151000 has 64 divisors (see below), whose sum is σ = 994481280. Its totient is φ = 166924800.

The previous prime is 421150997. The next prime is 421151009. The reversal of 421151000 is 151124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421151009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111137 + ... + 114863.

It is an arithmetic number, because the mean of its divisors is an integer number (15538770).

Almost surely, 2^421151000 is an apocalyptic number.

421151000 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 421151000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497240640).

421151000 is an abundant number, since it is smaller than the sum of its proper divisors (573330280).

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

421151000 is a wasteful number, since it uses less digits than its factorization.

421151000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861 (or 3847 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 421151000 is about 20521.9638436481. The cubic root of 421151000 is about 749.5707172983.

The spelling of 421151000 in words is "four hundred twenty-one million, one hundred fifty-one thousand".