1902979008 has 210 divisors, whose sum is σ = 6475162056. Its totient is φ = 541334016.

The previous prime is 1902979003. The next prime is 1902979009. The reversal of 1902979008 is 8009792091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902979003) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 8309838 + ... + 8310066.

Almost surely, 2^1902979008 is an apocalyptic number.

1902979008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1902979008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3237581028).

1902979008 is an abundant number, since it is smaller than the sum of its proper divisors (4572183048).

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

1902979008 is an frugal number, since it uses more digits than its factorization.

1902979008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 1902979008 is about 43623.1476168330. The cubic root of 1902979008 is about 1239.2093051414.

Multiplying 1902979008 by its product of nonzero digits (81648), we get a square (155374430045184 = 12464928²).

The spelling of 1902979008 in words is "one billion, nine hundred two million, nine hundred seventy-nine thousand, eight".