1305421452 has 36 divisors (see below), whose sum is σ = 3305219736. Its totient is φ = 434427840.

The previous prime is 1305421423. The next prime is 1305421471. The reversal of 1305421452 is 2541245031.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7174 + ... + 51597.

Almost surely, 2^1305421452 is an apocalyptic number.

1305421452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1305421452 is an abundant number, since it is smaller than the sum of its proper divisors (1999798284).

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

1305421452 is a wasteful number, since it uses less digits than its factorization.

1305421452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59398 (or 59393 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1305421452 is about 36130.6165460818. The cubic root of 1305421452 is about 1092.9079414991.

Adding to 1305421452 its reverse (2541245031), we get a palindrome (3846666483).

The spelling of 1305421452 in words is "one billion, three hundred five million, four hundred twenty-one thousand, four hundred fifty-two".