1213620410 has 8 divisors (see below), whose sum is σ = 2184516756. Its totient is φ = 485448160.

The previous prime is 1213620409. The next prime is 1213620413. The reversal of 1213620410 is 140263121.

It can be written as a sum of positive squares in 2 ways, for example, as 1018822561 + 194797849 = 31919^2 + 13957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1213620413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60681011 + ... + 60681030.

Almost surely, 2^1213620410 is an apocalyptic number.

1213620410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213620410 is a deficient number, since it is larger than the sum of its proper divisors (970896346).

1213620410 is a wasteful number, since it uses less digits than its factorization.

1213620410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121362048.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1213620410 is about 34837.0551281247. The cubic root of 1213620410 is about 1066.6639655965.

Adding to 1213620410 its reverse (140263121), we get a palindrome (1353883531).

The spelling of 1213620410 in words is "one billion, two hundred thirteen million, six hundred twenty thousand, four hundred ten".