13066438 has 96 divisors (see below), whose sum is σ = 28366848. Its totient is φ = 4435200.

The previous prime is 13066429. The next prime is 13066447. The reversal of 13066438 is 83466031.

It is an interprime number because it is at equal distance from previous prime (13066429) and next prime (13066447).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 421483 + ... + 421513.

It is an arithmetic number, because the mean of its divisors is an integer number (295488).

Almost surely, 2^13066438 is an apocalyptic number.

13066438 is an abundant number, since it is smaller than the sum of its proper divisors (15300410).

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

13066438 is a wasteful number, since it uses less digits than its factorization.

13066438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 13066438 is about 3614.7528269579. The cubic root of 13066438 is about 235.5333472430.

It can be divided in two parts, 1306 and 6438, that added together give a square (7744 = 88²).

The spelling of 13066438 in words is "thirteen million, sixty-six thousand, four hundred thirty-eight".