38549323740 has 24 divisors (see below), whose sum is σ = 107938106640. Its totient is φ = 10279819648.

The previous prime is 38549323739. The next prime is 38549323759. The reversal of 38549323740 is 4732394583.

It is a super-2 number, since 2×38549323740² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38549323740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321244305 + ... + 321244424.

It is an arithmetic number, because the mean of its divisors is an integer number (4497421110).

Almost surely, 2^38549323740 is an apocalyptic number.

38549323740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38549323740 is an abundant number, since it is smaller than the sum of its proper divisors (69388782900).

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

38549323740 is a wasteful number, since it uses less digits than its factorization.

38549323740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642488741 (or 642488739 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 38549323740 in words is "thirty-eight billion, five hundred forty-nine million, three hundred twenty-three thousand, seven hundred forty".