12345690 has 32 divisors (see below), whose sum is σ = 33863040. Its totient is φ = 2821824.

The previous prime is 12345653. The next prime is 12345701. The reversal of 12345690 is 9654321.

12345690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12345690² = 304832123152200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

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, 29185 + ... + 29604.

It is an arithmetic number, because the mean of its divisors is an integer number (1058220).

Almost surely, 2^12345690 is an apocalyptic number.

12345690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12345690 is an abundant number, since it is smaller than the sum of its proper divisors (21517350).

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

12345690 is a wasteful number, since it uses less digits than its factorization.

12345690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58806.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 12345690 is about 3513.6434082018. The cubic root of 12345690 is about 231.1204933493.

The spelling of 12345690 in words is "twelve million, three hundred forty-five thousand, six hundred ninety".