38440700 has 18 divisors (see below), whose sum is σ = 83416536. Its totient is φ = 15376240.

The previous prime is 38440697. The next prime is 38440709. The reversal of 38440700 is 704483.

It is a self number, because there is not a number n which added to its sum of digits gives 38440700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38440709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192104 + ... + 192303.

It is an arithmetic number, because the mean of its divisors is an integer number (4634252).

Almost surely, 2^38440700 is an apocalyptic number.

It is an amenable number.

38440700 is an abundant number, since it is smaller than the sum of its proper divisors (44975836).

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

38440700 is a wasteful number, since it uses less digits than its factorization.

38440700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384421 (or 384414 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 38440700 is about 6200.0564513559. The cubic root of 38440700 is about 337.4922174703.

The spelling of 38440700 in words is "thirty-eight million, four hundred forty thousand, seven hundred".