1320626734 has 24 divisors (see below), whose sum is σ = 2310839280. Its totient is φ = 564391296.

The previous prime is 1320626731. The next prime is 1320626771. The reversal of 1320626734 is 4376260231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320626734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320626731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16414 + ... + 53950.

It is an arithmetic number, because the mean of its divisors is an integer number (96284970).

Almost surely, 2^1320626734 is an apocalyptic number.

1320626734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1320626734 is a deficient number, since it is larger than the sum of its proper divisors (990212546).

1320626734 is a wasteful number, since it uses less digits than its factorization.

1320626734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37912 (or 37905 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 1320626734 is about 36340.4283684164. The cubic root of 1320626734 is about 1097.1348948729.

Adding to 1320626734 its reverse (4376260231), we get a palindrome (5696886965).

The spelling of 1320626734 in words is "one billion, three hundred twenty million, six hundred twenty-six thousand, seven hundred thirty-four".