1346932638 has 20 divisors (see below), whose sum is σ = 3018127200. Its totient is φ = 448977492.

The previous prime is 1346932633. The next prime is 1346932651. The reversal of 1346932638 is 8362396431.

1346932638 is a `hidden beast` number, since 1 + 3 + 4 + 6 + 9 + 3 + 2 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1346932593 and 1346932602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346932633) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4157038 + ... + 4157361.

It is an arithmetic number, because the mean of its divisors is an integer number (150906360).

Almost surely, 2^1346932638 is an apocalyptic number.

1346932638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1346932638 is an abundant number, since it is smaller than the sum of its proper divisors (1671194562).

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

1346932638 is an equidigital number, since it uses as much as digits as its factorization.

1346932638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8314413 (or 8314404 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 1346932638 is about 36700.5808945853. The cubic root of 1346932638 is about 1104.3717586618.

The spelling of 1346932638 in words is "one billion, three hundred forty-six million, nine hundred thirty-two thousand, six hundred thirty-eight".