1357836640 has 48 divisors (see below), whose sum is σ = 3239072928. Its totient is φ = 537854976.

The previous prime is 1357836607. The next prime is 1357836643. The reversal of 1357836640 is 466387531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357836643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24717 + ... + 57676.

It is an arithmetic number, because the mean of its divisors is an integer number (67480686).

Almost surely, 2^1357836640 is an apocalyptic number.

1357836640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1357836640 is an abundant number, since it is smaller than the sum of its proper divisors (1881236288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1357836640 is a wasteful number, since it uses less digits than its factorization.

1357836640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82511 (or 82503 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 1357836640 is about 36848.8349883684. The cubic root of 1357836640 is about 1107.3438751159.

The spelling of 1357836640 in words is "one billion, three hundred fifty-seven million, eight hundred thirty-six thousand, six hundred forty".