1326634642 has 16 divisors (see below), whose sum is σ = 2015399232. Its totient is φ = 654886960.

The previous prime is 1326634637. The next prime is 1326634657. The reversal of 1326634642 is 2464366231.

It is a happy number.

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, 38763 + ... + 64465.

It is an arithmetic number, because the mean of its divisors is an integer number (125962452).

Almost surely, 2^1326634642 is an apocalyptic number.

1326634642 is a deficient number, since it is larger than the sum of its proper divisors (688764590).

1326634642 is a wasteful number, since it uses less digits than its factorization.

1326634642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26033.

The product of its digits is 124416, while the sum is 37.

The square root of 1326634642 is about 36422.9960601815. The cubic root of 1326634642 is about 1098.7961049162.

The spelling of 1326634642 in words is "one billion, three hundred twenty-six million, six hundred thirty-four thousand, six hundred forty-two".