1994297514 has 32 divisors (see below), whose sum is σ = 4443780096. Its totient is φ = 591473520.

The previous prime is 1994297509. The next prime is 1994297519. The reversal of 1994297514 is 4157924991.

It is an interprime number because it is at equal distance from previous prime (1994297509) and next prime (1994297519).

It is not an unprimeable number, because it can be changed into a prime (1994297519) 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 15 ways as a sum of consecutive naturals, for example, 318352 + ... + 324555.

It is an arithmetic number, because the mean of its divisors is an integer number (138868128).

Almost surely, 2^1994297514 is an apocalyptic number.

1994297514 is an abundant number, since it is smaller than the sum of its proper divisors (2449482582).

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

1994297514 is a wasteful number, since it uses less digits than its factorization.

1994297514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642970.

The product of its digits is 816480, while the sum is 51.

The square root of 1994297514 is about 44657.5583076370. The cubic root of 1994297514 is about 1258.7224629932.

The spelling of 1994297514 in words is "one billion, nine hundred ninety-four million, two hundred ninety-seven thousand, five hundred fourteen".