1303422440 has 16 divisors (see below), whose sum is σ = 2932700580. Its totient is φ = 521368960.

The previous prime is 1303422437. The next prime is 1303422451. The reversal of 1303422440 is 442243031.

It can be written as a sum of positive squares in 2 ways, for example, as 1151787844 + 151634596 = 33938^2 + 12314^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16292741 + ... + 16292820.

Almost surely, 2^1303422440 is an apocalyptic number.

1303422440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303422440 is an abundant number, since it is smaller than the sum of its proper divisors (1629278140).

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

1303422440 is a wasteful number, since it uses less digits than its factorization.

1303422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32585572 (or 32585568 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1303422440 is about 36102.9422623697. The cubic root of 1303422440 is about 1092.3497942409.

Adding to 1303422440 its reverse (442243031), we get a palindrome (1745665471).

The spelling of 1303422440 in words is "one billion, three hundred three million, four hundred twenty-two thousand, four hundred forty".