1988073270 has 96 divisors (see below), whose sum is σ = 5373400032. Its totient is φ = 509538816.

The previous prime is 1988073253. The next prime is 1988073277. The reversal of 1988073270 is 723708891.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988073277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 272794 + ... + 279986.

It is an arithmetic number, because the mean of its divisors is an integer number (55972917).

Almost surely, 2^1988073270 is an apocalyptic number.

1988073270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1988073270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2686700016).

1988073270 is an abundant number, since it is smaller than the sum of its proper divisors (3385326762).

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

1988073270 is a wasteful number, since it uses less digits than its factorization.

1988073270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7326 (or 7323 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1988073270 is about 44587.8152638139. The cubic root of 1988073270 is about 1257.4115986429.

The spelling of 1988073270 in words is "one billion, nine hundred eighty-eight million, seventy-three thousand, two hundred seventy".