1403421530 has 64 divisors (see below), whose sum is σ = 2998702080. Its totient is φ = 462901824.

The previous prime is 1403421517. The next prime is 1403421533. The reversal of 1403421530 is 351243041.

It is a junction number, because it is equal to n+sod(n) for n = 1403421496 and 1403421505.

It is not an unprimeable number, because it can be changed into a prime (1403421533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198191 + ... + 205149.

It is an arithmetic number, because the mean of its divisors is an integer number (46854720).

Almost surely, 2^1403421530 is an apocalyptic number.

1403421530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1403421530 is an abundant number, since it is smaller than the sum of its proper divisors (1595280550).

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

1403421530 is a wasteful number, since it uses less digits than its factorization.

1403421530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7083.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1403421530 is about 37462.2680840336. The cubic root of 1403421530 is about 1119.5995406114.

Adding to 1403421530 its reverse (351243041), we get a palindrome (1754664571).

The spelling of 1403421530 in words is "one billion, four hundred three million, four hundred twenty-one thousand, five hundred thirty".