427191450 has 96 divisors (see below), whose sum is σ = 1214922240. Its totient is φ = 97310400.

The previous prime is 427191449. The next prime is 427191467. The reversal of 427191450 is 54191724.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 439465 + ... + 440435.

It is an arithmetic number, because the mean of its divisors is an integer number (12655440).

Almost surely, 2^427191450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427191450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607461120).

427191450 is an abundant number, since it is smaller than the sum of its proper divisors (787730790).

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

427191450 is a wasteful number, since it uses less digits than its factorization.

427191450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1407 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 427191450 is about 20668.6102580701. The cubic root of 427191450 is about 753.1373466637.

The spelling of 427191450 in words is "four hundred twenty-seven million, one hundred ninety-one thousand, four hundred fifty".