38190228340 has 96 divisors (see below), whose sum is σ = 93942229248. Its totient is φ = 12886272000.

The previous prime is 38190228331. The next prime is 38190228347. The reversal of 38190228340 is 4382209183.

It is a super-2 number, since 2×38190228340² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38190228293 and 38190228302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38190228347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193630 + ... + 337450.

It is an arithmetic number, because the mean of its divisors is an integer number (978564888).

Almost surely, 2^38190228340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38190228340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46971114624).

38190228340 is an abundant number, since it is smaller than the sum of its proper divisors (55752000908).

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

38190228340 is a wasteful number, since it uses less digits than its factorization.

38190228340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143929 (or 143927 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 38190228340 in words is "thirty-eight billion, one hundred ninety million, two hundred twenty-eight thousand, three hundred forty".