12920270 has 32 divisors (see below), whose sum is σ = 25734240. Its totient is φ = 4631040.

The previous prime is 12920269. The next prime is 12920291. The reversal of 12920270 is 7202921.

12920270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7226 + ... + 8834.

It is an arithmetic number, because the mean of its divisors is an integer number (804195).

Almost surely, 2^12920270 is an apocalyptic number.

12920270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12920270 is a deficient number, since it is larger than the sum of its proper divisors (12813970).

12920270 is a wasteful number, since it uses less digits than its factorization.

12920270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 12920270 is about 3594.4777089307. The cubic root of 12920270 is about 234.6517854752.

The spelling of 12920270 in words is "twelve million, nine hundred twenty thousand, two hundred seventy".