1357533680 has 20 divisors (see below), whose sum is σ = 3156265992. Its totient is φ = 543013440.

The previous prime is 1357533659. The next prime is 1357533689. The reversal of 1357533680 is 863357531.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357533689) 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, 8484506 + ... + 8484665.

Almost surely, 2^1357533680 is an apocalyptic number.

1357533680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1357533680 is an abundant number, since it is smaller than the sum of its proper divisors (1798732312).

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

1357533680 is a wasteful number, since it uses less digits than its factorization.

1357533680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16969184 (or 16969178 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 1357533680 is about 36844.7239099440. The cubic root of 1357533680 is about 1107.2615122738.

The spelling of 1357533680 in words is "one billion, three hundred fifty-seven million, five hundred thirty-three thousand, six hundred eighty".