12492040 has 96 divisors (see below), whose sum is σ = 32319000. Its totient is φ = 4336640.

The previous prime is 12492031. The next prime is 12492043. The reversal of 12492040 is 4029421.

12492040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8305924 + 4186116 = 2882^2 + 2046^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12492043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140316 + ... + 140404.

Almost surely, 2^12492040 is an apocalyptic number.

12492040 is a gapful number since it is divisible by the number (10) 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 12492040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16159500).

12492040 is an abundant number, since it is smaller than the sum of its proper divisors (19826960).

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

12492040 is a wasteful number, since it uses less digits than its factorization.

12492040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12492040 is about 3534.4080126663. The cubic root of 12492040 is about 232.0301684906.

The spelling of 12492040 in words is "twelve million, four hundred ninety-two thousand, forty".