1303890432 has 120 divisors (see below), whose sum is σ = 3762152064. Its totient is φ = 401117184.

The previous prime is 1303890421. The next prime is 1303890457. The reversal of 1303890432 is 2340983031.

It is a happy number.

It is a super-2 number, since 2×1303890432² = 3400260517322293248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1303890393 and 1303890402.

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, 257073 + ... + 262095.

Almost surely, 2^1303890432 is an apocalyptic number.

1303890432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1303890432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1881076032).

1303890432 is an abundant number, since it is smaller than the sum of its proper divisors (2458261632).

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

1303890432 is an equidigital number, since it uses as much as digits as its factorization.

1303890432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070 (or 5041 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 1303890432 is about 36109.4230360996. The cubic root of 1303890432 is about 1092.4805141513.

The spelling of 1303890432 in words is "one billion, three hundred three million, eight hundred ninety thousand, four hundred thirty-two".