1329978354 has 32 divisors (see below), whose sum is σ = 2708354880. Its totient is φ = 435278400.

The previous prime is 1329978301. The next prime is 1329978361. The reversal of 1329978354 is 4538799231.

It is a junction number, because it is equal to n+sod(n) for n = 1329978297 and 1329978306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373824 + ... + 377364.

It is an arithmetic number, because the mean of its divisors is an integer number (84636090).

Almost surely, 2^1329978354 is an apocalyptic number.

1329978354 is an abundant number, since it is smaller than the sum of its proper divisors (1378376526).

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

1329978354 is a wasteful number, since it uses less digits than its factorization.

1329978354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666.

The product of its digits is 1632960, while the sum is 51.

The square root of 1329978354 is about 36468.8682851552. The cubic root of 1329978354 is about 1099.7184827799.

The spelling of 1329978354 in words is "one billion, three hundred twenty-nine million, nine hundred seventy-eight thousand, three hundred fifty-four".