12401788 has 48 divisors (see below), whose sum is σ = 25873344. Its totient is φ = 5091840.

The previous prime is 12401743. The next prime is 12401791. The reversal of 12401788 is 88710421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90456 + ... + 90592.

It is an arithmetic number, because the mean of its divisors is an integer number (539028).

Almost surely, 2^12401788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12401788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12936672).

12401788 is an abundant number, since it is smaller than the sum of its proper divisors (13471556).

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

12401788 is a wasteful number, since it uses less digits than its factorization.

12401788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 12401788 is about 3521.6172421204. The cubic root of 12401788 is about 231.4700298782.

The spelling of 12401788 in words is "twelve million, four hundred one thousand, seven hundred eighty-eight".