1068401738 has 4 divisors (see below), whose sum is σ = 1602602610. Its totient is φ = 534200868.

The previous prime is 1068401729. The next prime is 1068401743. The reversal of 1068401738 is 8371048601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8371048601 = 457 ⋅18317393.

It can be written as a sum of positive squares in only one way, i.e., 1066871569 + 1530169 = 32663^2 + 1237^2 .

It is a super-2 number, since 2×1068401738² = 2282964547522841288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267100433 + ... + 267100436.

Almost surely, 2^1068401738 is an apocalyptic number.

1068401738 is a deficient number, since it is larger than the sum of its proper divisors (534200872).

1068401738 is an equidigital number, since it uses as much as digits as its factorization.

1068401738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534200871.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1068401738 is about 32686.4151904121. The cubic root of 1068401738 is about 1022.2996103816.

The spelling of 1068401738 in words is "one billion, sixty-eight million, four hundred one thousand, seven hundred thirty-eight".