1305238932 has 36 divisors (see below), whose sum is σ = 3305265600. Its totient is φ = 434300112.

The previous prime is 1305238919. The next prime is 1305238933. The reversal of 1305238932 is 2398325031.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305238933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11932 + ... + 52467.

Almost surely, 2^1305238932 is an apocalyptic number.

1305238932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1305238932 is an abundant number, since it is smaller than the sum of its proper divisors (2000026668).

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

1305238932 is a wasteful number, since it uses less digits than its factorization.

1305238932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64972 (or 64967 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1305238932 is about 36128.0906221184. The cubic root of 1305238932 is about 1092.8570034529.

It can be divided in two parts, 13052 and 38932, that added together give a square (51984 = 228²).

The spelling of 1305238932 in words is "one billion, three hundred five million, two hundred thirty-eight thousand, nine hundred thirty-two".