1020403530 has 48 divisors (see below), whose sum is σ = 2661763104. Its totient is φ = 271213920.

The previous prime is 1020403519. The next prime is 1020403561. The reversal of 1020403530 is 353040201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9165 + ... + 46095.

It is an arithmetic number, because the mean of its divisors is an integer number (55453398).

Almost surely, 2^1020403530 is an apocalyptic number.

1020403530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020403530 is an abundant number, since it is smaller than the sum of its proper divisors (1641359574).

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

1020403530 is a wasteful number, since it uses less digits than its factorization.

1020403530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37251 (or 37248 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1020403530 is about 31943.7557278414. The cubic root of 1020403530 is about 1006.7554379610.

Adding to 1020403530 its reverse (353040201), we get a palindrome (1373443731).

It can be divided in two parts, 102040 and 3530, that added together give a triangular number (105570 = T₄₅₉).

The spelling of 1020403530 in words is "one billion, twenty million, four hundred three thousand, five hundred thirty".