1342785393 has 18 divisors (see below), whose sum is σ = 1947375794. Its totient is φ = 891601344.

The previous prime is 1342785373. The next prime is 1342785413. The reversal of 1342785393 is 3935872431.

1342785393 is a `hidden beast` number, since 1 + 3 + 42 + 78 + 539 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1342785373) and next prime (1342785413).

It can be written as a sum of positive squares in only one way, i.e., 896223969 + 446561424 = 29937^2 + 21132^2 .

It is not a de Polignac number, because 1342785393 - 2⁶ = 1342785329 is a prime.

It is a super-2 number, since 2×1342785393² = 3606145223308328898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342785343) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2287246 + ... + 2287832.

Almost surely, 2^1342785393 is an apocalyptic number.

It is an amenable number.

1342785393 is a deficient number, since it is larger than the sum of its proper divisors (604590401).

1342785393 is an frugal number, since it uses more digits than its factorization.

1342785393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613 (or 1023 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 1342785393 is about 36644.0362542120. The cubic root of 1342785393 is about 1103.2371290258.

The spelling of 1342785393 in words is "one billion, three hundred forty-two million, seven hundred eighty-five thousand, three hundred ninety-three".