427732992 has 156 divisors (see below), whose sum is σ = 1270129224. Its totient is φ = 138608640.

The previous prime is 427732889. The next prime is 427732999. The reversal of 427732992 is 299237724.

It is not an unprimeable number, because it can be changed into a prime (427732999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1511283 + ... + 1511565.

It is an arithmetic number, because the mean of its divisors is an integer number (8141854).

Almost surely, 2^427732992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427732992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635064612).

427732992 is an abundant number, since it is smaller than the sum of its proper divisors (842396232).

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

427732992 is a wasteful number, since it uses less digits than its factorization.

427732992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 329 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 427732992 is about 20681.7066993998. The cubic root of 427732992 is about 753.4554579640.

The spelling of 427732992 in words is "four hundred twenty-seven million, seven hundred thirty-two thousand, nine hundred ninety-two".