1380958957 has 8 divisors (see below), whose sum is σ = 1578986432. Its totient is φ = 1183118400.

The previous prime is 1380958951. The next prime is 1380958967. The reversal of 1380958957 is 7598590831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1380958957 - 2³ = 1380958949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1380958898 and 1380958907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380958951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30519 + ... + 60772.

It is an arithmetic number, because the mean of its divisors is an integer number (197373304).

Almost surely, 2^1380958957 is an apocalyptic number.

It is an amenable number.

1380958957 is a deficient number, since it is larger than the sum of its proper divisors (198027475).

1380958957 is an equidigital number, since it uses as much as digits as its factorization.

1380958957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93459.

The product of its (nonzero) digits is 2721600, while the sum is 55.

The square root of 1380958957 is about 37161.2561278545. The cubic root of 1380958957 is about 1113.5941062591.

The spelling of 1380958957 in words is "one billion, three hundred eighty million, nine hundred fifty-eight thousand, nine hundred fifty-seven".