321699474 has 24 divisors (see below), whose sum is σ = 703188252. Its totient is φ = 106283520.

The previous prime is 321699473. The next prime is 321699479. The reversal of 321699474 is 474996123.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 279123849 + 42575625 = 16707^2 + 6525^2 .

It is not an unprimeable number, because it can be changed into a prime (321699473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77047 + ... + 81114.

Almost surely, 2^321699474 is an apocalyptic number.

321699474 is an abundant number, since it is smaller than the sum of its proper divisors (381488778).

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

321699474 is a wasteful number, since it uses less digits than its factorization.

321699474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158282 (or 158279 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 321699474 is about 17935.9826605625. The cubic root of 321699474 is about 685.1990996008.

The spelling of 321699474 in words is "three hundred twenty-one million, six hundred ninety-nine thousand, four hundred seventy-four".