1497998994 has 8 divisors (see below), whose sum is σ = 2995998000. Its totient is φ = 499332996.

The previous prime is 1497998989. The next prime is 1497999059. The reversal of 1497998994 is 4998997941.

It is a sphenic number, since it is the product of 3 distinct primes.

1497998994 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124833244 + ... + 124833255.

It is an arithmetic number, because the mean of its divisors is an integer number (374499750).

Almost surely, 2^1497998994 is an apocalyptic number.

1497998994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1497998994 is a wasteful number, since it uses less digits than its factorization.

1497998994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249666504.

The product of its digits is 52907904, while the sum is 69.

The square root of 1497998994 is about 38703.9919646540. The cubic root of 1497998994 is about 1144.2049982487.

The spelling of 1497998994 in words is "one billion, four hundred ninety-seven million, nine hundred ninety-eight thousand, nine hundred ninety-four".