9992037420 has 192 divisors, whose sum is σ = 31495618560. Its totient is φ = 2629718784.

The previous prime is 9992037413. The next prime is 9992037421. The reversal of 9992037420 is 247302999.

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

It is not an unprimeable number, because it can be changed into a prime (9992037421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25168662 + ... + 25169058.

It is an arithmetic number, because the mean of its divisors is an integer number (164039680).

Almost surely, 2^9992037420 is an apocalyptic number.

9992037420 is a gapful number since it is divisible by the number (90) 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 9992037420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15747809280).

9992037420 is an abundant number, since it is smaller than the sum of its proper divisors (21503581140).

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

9992037420 is a wasteful number, since it uses less digits than its factorization.

9992037420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 9992037420 is about 99960.1791715081. The cubic root of 9992037420 is about 2153.8627095712.

The spelling of 9992037420 in words is "nine billion, nine hundred ninety-two million, thirty-seven thousand, four hundred twenty".