1247480 has 32 divisors (see below), whose sum is σ = 3024000. Its totient is φ = 460416.

The previous prime is 1247479. The next prime is 1247501. The reversal of 1247480 is 847421.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a plaindrome in base 14.

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, 680 + ... + 1719.

It is an arithmetic number, because the mean of its divisors is an integer number (94500).

2^1247480 is an apocalyptic number.

1247480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1247480 is an abundant number, since it is smaller than the sum of its proper divisors (1776520).

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

1247480 is a wasteful number, since it uses less digits than its factorization.

1247480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 1247480 is about 1116.9064419189. The cubic root of 1247480 is about 107.6492967960.

The spelling of 1247480 in words is "one million, two hundred forty-seven thousand, four hundred eighty".