1385422434 has 96 divisors (see below), whose sum is σ = 3511771200. Its totient is φ = 401480640.

The previous prime is 1385422421. The next prime is 1385422477. The reversal of 1385422434 is 4342245831.

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, 312022 + ... + 316430.

It is an arithmetic number, because the mean of its divisors is an integer number (36580950).

Almost surely, 2^1385422434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1385422434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1755885600).

1385422434 is an abundant number, since it is smaller than the sum of its proper divisors (2126348766).

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

1385422434 is a wasteful number, since it uses less digits than its factorization.

1385422434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477 (or 4448 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 1385422434 is about 37221.2631972640. The cubic root of 1385422434 is about 1114.7925865138.

The spelling of 1385422434 in words is "one billion, three hundred eighty-five million, four hundred twenty-two thousand, four hundred thirty-four".