12740070 has 128 divisors (see below), whose sum is σ = 38338560. Its totient is φ = 2643840.

The previous prime is 12740059. The next prime is 12740081. The reversal of 12740070 is 7004721.

12740070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12740059) and next prime (12740081).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123639 + ... + 123741.

It is an arithmetic number, because the mean of its divisors is an integer number (299520).

Almost surely, 2^12740070 is an apocalyptic number.

12740070 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 12740070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19169280).

12740070 is an abundant number, since it is smaller than the sum of its proper divisors (25598490).

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

12740070 is a wasteful number, since it uses less digits than its factorization.

12740070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 12740070 is about 3569.3234653082. The cubic root of 12740070 is about 233.5557720069. Note that the first 3 decimals are identical.

Adding to 12740070 its reverse (7004721), we get a palindrome (19744791).

The spelling of 12740070 in words is "twelve million, seven hundred forty thousand, seventy".