12620355 has 16 divisors (see below), whose sum is σ = 22028544. Its totient is φ = 6118880.

The previous prime is 12620339. The next prime is 12620359. The reversal of 12620355 is 55302621.

It is not a de Polignac number, because 12620355 - 2⁴ = 12620339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12620359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38079 + ... + 38408.

It is an arithmetic number, because the mean of its divisors is an integer number (1376784).

Almost surely, 2^12620355 is an apocalyptic number.

12620355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12620355 is a deficient number, since it is larger than the sum of its proper divisors (9408189).

12620355 is a wasteful number, since it uses less digits than its factorization.

12620355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76506.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 12620355 is about 3552.5138986357. The cubic root of 12620355 is about 232.8219150435.

Adding to 12620355 its reverse (55302621), we get a palindrome (67922976).

The spelling of 12620355 in words is "twelve million, six hundred twenty thousand, three hundred fifty-five".