1357111640 has 64 divisors (see below), whose sum is σ = 3123696960. Its totient is φ = 530449920.

The previous prime is 1357111601. The next prime is 1357111673. The reversal of 1357111640 is 461117531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586085 + ... + 588395.

It is an arithmetic number, because the mean of its divisors is an integer number (48807765).

Almost surely, 2^1357111640 is an apocalyptic number.

1357111640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1357111640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1561848480).

1357111640 is an abundant number, since it is smaller than the sum of its proper divisors (1766585320).

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

1357111640 is a wasteful number, since it uses less digits than its factorization.

1357111640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2652 (or 2648 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 1357111640 is about 36838.9961861069. The cubic root of 1357111640 is about 1107.1467558616.

The spelling of 1357111640 in words is "one billion, three hundred fifty-seven million, one hundred eleven thousand, six hundred forty".