12472040 has 32 divisors (see below), whose sum is σ = 32071680. Its totient is φ = 4276032.

The previous prime is 12472039. The next prime is 12472051. The reversal of 12472040 is 4027421.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 21992 + ... + 22551.

It is an arithmetic number, because the mean of its divisors is an integer number (1002240).

Almost surely, 2^12472040 is an apocalyptic number.

12472040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12472040 is an abundant number, since it is smaller than the sum of its proper divisors (19599640).

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

12472040 is a wasteful number, since it uses less digits than its factorization.

12472040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44561 (or 44557 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 12472040 is about 3531.5775511802. The cubic root of 12472040 is about 231.9062740709.

Adding to 12472040 its reverse (4027421), we get a palindrome (16499461).

The spelling of 12472040 in words is "twelve million, four hundred seventy-two thousand, forty".