1357378438 has 8 divisors (see below), whose sum is σ = 2192688288. Its totient is φ = 626482344.

The previous prime is 1357378433. The next prime is 1357378453. The reversal of 1357378438 is 8348737531.

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

It is a junction number, because it is equal to n+sod(n) for n = 1357378391 and 1357378400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357378433) 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 3 ways as a sum of consecutive naturals, for example, 26103406 + ... + 26103457.

It is an arithmetic number, because the mean of its divisors is an integer number (274086036).

Almost surely, 2^1357378438 is an apocalyptic number.

1357378438 is a deficient number, since it is larger than the sum of its proper divisors (835309850).

1357378438 is a wasteful number, since it uses less digits than its factorization.

1357378438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52206878.

The product of its digits is 1693440, while the sum is 49.

The square root of 1357378438 is about 36842.6171437372. The cubic root of 1357378438 is about 1107.2193033654.

The spelling of 1357378438 in words is "one billion, three hundred fifty-seven million, three hundred seventy-eight thousand, four hundred thirty-eight".