13445709930 has 96 divisors (see below), whose sum is σ = 36197787600. Its totient is φ = 3458681856.

The previous prime is 13445709899. The next prime is 13445709931. The reversal of 13445709930 is 3990754431.

13445709930 is a `hidden beast` number, since 1 + 3 + 44 + 570 + 9 + 9 + 30 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2631997809 + 10813712121 = 51303^2 + 103989^2 .

It is a super-3 number, since 3×13445709930³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (13445709931) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4323216 + ... + 4326324.

Almost surely, 2^13445709930 is an apocalyptic number.

13445709930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13445709930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18098893800).

13445709930 is an abundant number, since it is smaller than the sum of its proper divisors (22752077670).

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

13445709930 is a wasteful number, since it uses less digits than its factorization.

13445709930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808 (or 4805 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 13445709930 in words is "thirteen billion, four hundred forty-five million, seven hundred nine thousand, nine hundred thirty".