12148444 has 24 divisors (see below), whose sum is σ = 26506368. Its totient is φ = 4733040.

The previous prime is 12148397. The next prime is 12148453. The reversal of 12148444 is 44484121.

12148444 = 181² + 182² + ... + 348².

It is a super-2 number, since 2×12148444² = 295169383242272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19414 + ... + 20029.

It is an arithmetic number, because the mean of its divisors is an integer number (1104432).

Almost surely, 2^12148444 is an apocalyptic number.

12148444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12148444 is an abundant number, since it is smaller than the sum of its proper divisors (14357924).

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

12148444 is a wasteful number, since it uses less digits than its factorization.

12148444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39465 (or 39463 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 12148444 is about 3485.4618058444. The cubic root of 12148444 is about 229.8830154927.

It can be divided in two parts, 12 and 148444, that multiplied together give a triangular number (1781328 = T₁₈₈₇).

The spelling of 12148444 in words is "twelve million, one hundred forty-eight thousand, four hundred forty-four".