38343540 has 48 divisors (see below), whose sum is σ = 109654272. Its totient is φ = 10006656.

The previous prime is 38343491. The next prime is 38343601. The reversal of 38343540 is 4534383.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 38343498 and 38343507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3979 + ... + 9618.

It is an arithmetic number, because the mean of its divisors is an integer number (2284464).

Almost surely, 2^38343540 is an apocalyptic number.

38343540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38343540 is an abundant number, since it is smaller than the sum of its proper divisors (71310732).

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

38343540 is a wasteful number, since it uses less digits than its factorization.

38343540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13656 (or 13654 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 38343540 is about 6192.2160815010. The cubic root of 38343540 is about 337.2076370713.

It can be divided in two parts, 38343 and 540, that added together give a palindrome (38883).

The spelling of 38343540 in words is "thirty-eight million, three hundred forty-three thousand, five hundred forty".