1383426437 has 4 divisors (see below), whose sum is σ = 1383566976. Its totient is φ = 1383285900.

The previous prime is 1383426427. The next prime is 1383426449. The reversal of 1383426437 is 7346243831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7346243831 = 307 ⋅23929133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1383426437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1383426394 and 1383426403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383426427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54293 + ... + 75594.

It is an arithmetic number, because the mean of its divisors is an integer number (345891744).

Almost surely, 2^1383426437 is an apocalyptic number.

It is an amenable number.

1383426437 is a deficient number, since it is larger than the sum of its proper divisors (140539).

1383426437 is a wasteful number, since it uses less digits than its factorization.

1383426437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140538.

The product of its digits is 290304, while the sum is 41.

The square root of 1383426437 is about 37194.4409421623. The cubic root of 1383426437 is about 1114.2569635760.

The spelling of 1383426437 in words is "one billion, three hundred eighty-three million, four hundred twenty-six thousand, four hundred thirty-seven".