1207621320 has 32 divisors (see below), whose sum is σ = 3622864320. Its totient is φ = 322032320.

The previous prime is 1207621307. The next prime is 1207621379. The reversal of 1207621320 is 231267021.

It is a super-5 number, since 5×1207621320⁵ (a number of 47 digits) contains 55555 as substring.

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

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, 5031636 + ... + 5031875.

It is an arithmetic number, because the mean of its divisors is an integer number (113214510).

Almost surely, 2^1207621320 is an apocalyptic number.

1207621320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1207621320 is an abundant number, since it is smaller than the sum of its proper divisors (2415243000).

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

1207621320 is a wasteful number, since it uses less digits than its factorization.

1207621320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10063525 (or 10063521 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1207621320 is about 34750.8463206294. The cubic root of 1207621320 is about 1064.9035068740.

Adding to 1207621320 its reverse (231267021), we get a palindrome (1438888341).

The spelling of 1207621320 in words is "one billion, two hundred seven million, six hundred twenty-one thousand, three hundred twenty".