1553680474 has 8 divisors (see below), whose sum is σ = 2331859968. Its totient is φ = 776393820.

The previous prime is 1553680463. The next prime is 1553680477. The reversal of 1553680474 is 4740863551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1553680474.

It is not an unprimeable number, because it can be changed into a prime (1553680477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218842 + ... + 225829.

It is an arithmetic number, because the mean of its divisors is an integer number (291482496).

Almost surely, 2^1553680474 is an apocalyptic number.

1553680474 is a deficient number, since it is larger than the sum of its proper divisors (778179494).

1553680474 is a wasteful number, since it uses less digits than its factorization.

1553680474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446420.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 1553680474 is about 39416.7537222435. The cubic root of 1553680474 is about 1158.2098015748.

The spelling of 1553680474 in words is "one billion, five hundred fifty-three million, six hundred eighty thousand, four hundred seventy-four".