13012040 has 16 divisors (see below), whose sum is σ = 29277180. Its totient is φ = 5204800.

The previous prime is 13012019. The next prime is 13012061. The reversal of 13012040 is 4021031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13012019) and next prime (13012061).

It can be written as a sum of positive squares in 2 ways, for example, as 12974404 + 37636 = 3602^2 + 194^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162611 + ... + 162690.

Almost surely, 2^13012040 is an apocalyptic number.

13012040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13012040 is an abundant number, since it is smaller than the sum of its proper divisors (16265140).

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

13012040 is a wasteful number, since it uses less digits than its factorization.

13012040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325312 (or 325308 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 13012040 is about 3607.2205366459. The cubic root of 13012040 is about 235.2060362959.

Adding to 13012040 its reverse (4021031), we get a palindrome (17033071).

The spelling of 13012040 in words is "thirteen million, twelve thousand, forty".