1234386645 has 16 divisors (see below), whose sum is σ = 1975676352. Its totient is φ = 658120320.

The previous prime is 1234386641. The next prime is 1234386649. The reversal of 1234386645 is 5466834321.

It is an interprime number because it is at equal distance from previous prime (1234386641) and next prime (1234386649).

It is not a de Polignac number, because 1234386645 - 2² = 1234386641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1234386597 and 1234386606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234386641) 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 15 ways as a sum of consecutive naturals, for example, 39510 + ... + 63480.

It is an arithmetic number, because the mean of its divisors is an integer number (123479772).

Almost surely, 2^1234386645 is an apocalyptic number.

1234386645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1234386645 is a deficient number, since it is larger than the sum of its proper divisors (741289707).

1234386645 is a wasteful number, since it uses less digits than its factorization.

1234386645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27412.

The product of its digits is 414720, while the sum is 42.

The square root of 1234386645 is about 35133.8390301999. The cubic root of 1234386645 is about 1072.7134800345.

The spelling of 1234386645 in words is "one billion, two hundred thirty-four million, three hundred eighty-six thousand, six hundred forty-five".