1357321838 has 16 divisors (see below), whose sum is σ = 2130468480. Its totient is φ = 647858016.

The previous prime is 1357321813. The next prime is 1357321841. The reversal of 1357321838 is 8381237531.

It is a junction number, because it is equal to n+sod(n) for n = 1357321795 and 1357321804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169118 + ... + 176961.

It is an arithmetic number, because the mean of its divisors is an integer number (133154280).

Almost surely, 2^1357321838 is an apocalyptic number.

1357321838 is a deficient number, since it is larger than the sum of its proper divisors (773146642).

1357321838 is a wasteful number, since it uses less digits than its factorization.

1357321838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346171.

The product of its digits is 120960, while the sum is 41.

The square root of 1357321838 is about 36841.8490035449. The cubic root of 1357321838 is about 1107.2039135321.

The spelling of 1357321838 in words is "one billion, three hundred fifty-seven million, three hundred twenty-one thousand, eight hundred thirty-eight".