8403480 has 128 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 2160000.

The previous prime is 8403431. The next prime is 8403481. The reversal of 8403480 is 843048.

It is a super-2 number, since 2×8403480² = 141236952220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8403481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33355 + ... + 33605.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

Almost surely, 2^8403480 is an apocalyptic number.

8403480 is the 1674-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8403480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14515200).

8403480 is an abundant number, since it is smaller than the sum of its proper divisors (20626920).

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

8403480 is a wasteful number, since it uses less digits than its factorization.

8403480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 8403480 is about 2898.8756441076. The cubic root of 8403480 is about 203.3073393866.

The spelling of 8403480 in words is "eight million, four hundred three thousand, four hundred eighty".