425442064 has 40 divisors (see below), whose sum is σ = 863069760. Its totient is φ = 202892928.

The previous prime is 425442049. The next prime is 425442071. The reversal of 425442064 is 460244524.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32989 + ... + 44035.

It is an arithmetic number, because the mean of its divisors is an integer number (21576744).

Almost surely, 2^425442064 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 425442064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431534880).

425442064 is an abundant number, since it is smaller than the sum of its proper divisors (437627696).

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

425442064 is a wasteful number, since it uses less digits than its factorization.

425442064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11167 (or 11161 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 425442064 is about 20626.2469683653. The cubic root of 425442064 is about 752.1078859096.

Adding to 425442064 its reverse (460244524), we get a palindrome (885686588).

The spelling of 425442064 in words is "four hundred twenty-five million, four hundred forty-two thousand, sixty-four".