1245888 has 112 divisors (see below), whose sum is σ = 4226560. Its totient is φ = 352512.

The previous prime is 1245883. The next prime is 1245917. The reversal of 1245888 is 8885421.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1245883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12045 + ... + 12147.

2^1245888 is an apocalyptic number.

1245888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2113280).

1245888 is an abundant number, since it is smaller than the sum of its proper divisors (2980672).

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

1245888 is a wasteful number, since it uses less digits than its factorization.

1245888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 115 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 1245888 is about 1116.1935316064. The cubic root of 1245888 is about 107.6034842687.

The spelling of 1245888 in words is "one million, two hundred forty-five thousand, eight hundred eighty-eight".