1321885474 has 16 divisors (see below), whose sum is σ = 2440404288. Its totient is φ = 522943632.

The previous prime is 1321885451. The next prime is 1321885483. The reversal of 1321885474 is 4745881231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321885474.

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, 3631372 + ... + 3631735.

It is an arithmetic number, because the mean of its divisors is an integer number (152525268).

Almost surely, 2^1321885474 is an apocalyptic number.

1321885474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1321885474 is a deficient number, since it is larger than the sum of its proper divisors (1118518814).

1321885474 is a wasteful number, since it uses less digits than its factorization.

1321885474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7263129.

The product of its digits is 215040, while the sum is 43.

The square root of 1321885474 is about 36357.7429717522. The cubic root of 1321885474 is about 1097.4833579702.

The spelling of 1321885474 in words is "one billion, three hundred twenty-one million, eight hundred eighty-five thousand, four hundred seventy-four".