1303234440 has 32 divisors (see below), whose sum is σ = 3909703680. Its totient is φ = 347529152.

The previous prime is 1303234417. The next prime is 1303234469. The reversal of 1303234440 is 444323031.

1303234440 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1303234440² = 3396840011204227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1303234440.

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, 5430024 + ... + 5430263.

It is an arithmetic number, because the mean of its divisors is an integer number (122178240).

Almost surely, 2^1303234440 is an apocalyptic number.

1303234440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303234440 is an abundant number, since it is smaller than the sum of its proper divisors (2606469240).

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

1303234440 is a wasteful number, since it uses less digits than its factorization.

1303234440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10860301 (or 10860297 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1303234440 is about 36100.3385025681. The cubic root of 1303234440 is about 1092.2972731167.

Adding to 1303234440 its reverse (444323031), we get a palindrome (1747557471).

The spelling of 1303234440 in words is "one billion, three hundred three million, two hundred thirty-four thousand, four hundred forty".