1333408994 has 4 divisors (see below), whose sum is σ = 2000113494. Its totient is φ = 666704496.

The previous prime is 1333408987. The next prime is 1333409003. The reversal of 1333408994 is 4998043331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4998043331 = 73 ⋅68466347.

It can be written as a sum of positive squares in only one way, i.e., 970011025 + 363397969 = 31145^2 + 19063^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 333352247 + ... + 333352250.

Almost surely, 2^1333408994 is an apocalyptic number.

1333408994 is a deficient number, since it is larger than the sum of its proper divisors (666704500).

1333408994 is an equidigital number, since it uses as much as digits as its factorization.

1333408994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666704499.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 1333408994 is about 36515.8731786603. The cubic root of 1333408994 is about 1100.6632347392.

The spelling of 1333408994 in words is "one billion, three hundred thirty-three million, four hundred eight thousand, nine hundred ninety-four".