38205140 has 12 divisors (see below), whose sum is σ = 80230836. Its totient is φ = 15282048.

The previous prime is 38205121. The next prime is 38205161. The reversal of 38205140 is 4150283.

It can be written as a sum of positive squares in 2 ways, for example, as 11806096 + 26399044 = 3436^2 + 5138^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955109 + ... + 955148.

It is an arithmetic number, because the mean of its divisors is an integer number (6685903).

Almost surely, 2^38205140 is an apocalyptic number.

It is an amenable number.

38205140 is an abundant number, since it is smaller than the sum of its proper divisors (42025696).

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

38205140 is a wasteful number, since it uses less digits than its factorization.

38205140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910266 (or 1910264 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 38205140 is about 6181.0306583935. The cubic root of 38205140 is about 336.8014339172.

The spelling of 38205140 in words is "thirty-eight million, two hundred five thousand, one hundred forty".