1354021664 has 24 divisors (see below), whose sum is σ = 2669710428. Its totient is φ = 676000000.

The previous prime is 1354021651. The next prime is 1354021673. The reversal of 1354021664 is 4661204531.

It can be written as a sum of positive squares in 2 ways, for example, as 734410000 + 619611664 = 27100^2 + 24892^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1354021664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9587 + ... + 52914.

Almost surely, 2^1354021664 is an apocalyptic number.

It is an amenable number.

1354021664 is a deficient number, since it is larger than the sum of its proper divisors (1315688764).

1354021664 is an equidigital number, since it uses as much as digits as its factorization.

1354021664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63188 (or 63180 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1354021664 is about 36797.0333586826. The cubic root of 1354021664 is about 1106.3058383978.

The spelling of 1354021664 in words is "one billion, three hundred fifty-four million, twenty-one thousand, six hundred sixty-four".