1998412702 has 32 divisors (see below), whose sum is σ = 3603600000. Its totient is φ = 818989920.

The previous prime is 1998412699. The next prime is 1998412813. The reversal of 1998412702 is 2072148991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68952 + ... + 93547.

It is an arithmetic number, because the mean of its divisors is an integer number (112612500).

Almost surely, 2^1998412702 is an apocalyptic number.

1998412702 is a deficient number, since it is larger than the sum of its proper divisors (1605187298).

1998412702 is a wasteful number, since it uses less digits than its factorization.

1998412702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162568.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 1998412702 is about 44703.6094963259. The cubic root of 1998412702 is about 1259.5876499847.

The spelling of 1998412702 in words is "one billion, nine hundred ninety-eight million, four hundred twelve thousand, seven hundred two".