1998959102 has 8 divisors (see below), whose sum is σ = 3426787056. Its totient is φ = 856696752.

The previous prime is 1998959101. The next prime is 1998959111. The reversal of 1998959102 is 2019598991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998959101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71391383 + ... + 71391410.

It is an arithmetic number, because the mean of its divisors is an integer number (428348382).

Almost surely, 2^1998959102 is an apocalyptic number.

1998959102 is a deficient number, since it is larger than the sum of its proper divisors (1427827954).

1998959102 is a wasteful number, since it uses less digits than its factorization.

1998959102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142782802.

The product of its (nonzero) digits is 524880, while the sum is 53.

The square root of 1998959102 is about 44709.7204419800. The cubic root of 1998959102 is about 1259.7024370814.

The spelling of 1998959102 in words is "one billion, nine hundred ninety-eight million, nine hundred fifty-nine thousand, one hundred two".