1974821346 has 48 divisors (see below), whose sum is σ = 4309905600. Its totient is φ = 653504544.

The previous prime is 1974821341. The next prime is 1974821347. The reversal of 1974821346 is 6431284791.

It is not an unprimeable number, because it can be changed into a prime (1974821341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2716035 + ... + 2716761.

It is an arithmetic number, because the mean of its divisors is an integer number (89789700).

Almost surely, 2^1974821346 is an apocalyptic number.

1974821346 is an abundant number, since it is smaller than the sum of its proper divisors (2335084254).

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

1974821346 is a wasteful number, since it uses less digits than its factorization.

1974821346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623 (or 1620 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 1974821346 is about 44438.9620265820. The cubic root of 1974821346 is about 1254.6115199986.

The spelling of 1974821346 in words is "one billion, nine hundred seventy-four million, eight hundred twenty-one thousand, three hundred forty-six".