827426490 has 64 divisors (see below), whose sum is σ = 2188771200. Its totient is φ = 198512640.

The previous prime is 827426489. The next prime is 827426491. The reversal of 827426490 is 94624728.

It is an interprime number because it is at equal distance from previous prime (827426489) and next prime (827426491).

It is not an unprimeable number, because it can be changed into a prime (827426491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19086 + ... + 44934.

It is an arithmetic number, because the mean of its divisors is an integer number (34199550).

Almost surely, 2^827426490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 827426490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094385600).

827426490 is an abundant number, since it is smaller than the sum of its proper divisors (1361344710).

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

827426490 is a wasteful number, since it uses less digits than its factorization.

827426490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25967.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 827426490 is about 28765.0219885193. The cubic root of 827426490 is about 938.8073337784.

The spelling of 827426490 in words is "eight hundred twenty-seven million, four hundred twenty-six thousand, four hundred ninety".