38213740 has 12 divisors (see below), whose sum is σ = 80248896. Its totient is φ = 15285488.

The previous prime is 38213737. The next prime is 38213767. The reversal of 38213740 is 4731283.

It is a junction number, because it is equal to n+sod(n) for n = 38213699 and 38213708.

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 3 ways as a sum of consecutive naturals, for example, 955324 + ... + 955363.

It is an arithmetic number, because the mean of its divisors is an integer number (6687408).

Almost surely, 2^38213740 is an apocalyptic number.

It is an amenable number.

38213740 is an abundant number, since it is smaller than the sum of its proper divisors (42035156).

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

38213740 is a wasteful number, since it uses less digits than its factorization.

38213740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910696 (or 1910694 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 38213740 is about 6181.7262961086. The cubic root of 38213740 is about 336.8267034230.

The spelling of 38213740 in words is "thirty-eight million, two hundred thirteen thousand, seven hundred forty".