1302453020 has 24 divisors (see below), whose sum is σ = 2983801968. Its totient is φ = 473619200.

The previous prime is 1302453007. The next prime is 1302453071. The reversal of 1302453020 is 203542031.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1302452983 and 1302453001.

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, 2959901 + ... + 2960340.

It is an arithmetic number, because the mean of its divisors is an integer number (124325082).

Almost surely, 2^1302453020 is an apocalyptic number.

1302453020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302453020 is an abundant number, since it is smaller than the sum of its proper divisors (1681348948).

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

1302453020 is a wasteful number, since it uses less digits than its factorization.

1302453020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5920261 (or 5920259 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1302453020 is about 36089.5139895233. The cubic root of 1302453020 is about 1092.0789154775.

Adding to 1302453020 its reverse (203542031), we get a palindrome (1505995051).

The spelling of 1302453020 in words is "one billion, three hundred two million, four hundred fifty-three thousand, twenty".