38700261 has 30 divisors (see below), whose sum is σ = 59586450. Its totient is φ = 25030944.

The previous prime is 38700257. The next prime is 38700281. The reversal of 38700261 is 16200783.

It can be written as a sum of positive squares in 3 ways, for example, as 26316900 + 12383361 = 5130^2 + 3519^2 .

It is not a de Polignac number, because 38700261 - 2² = 38700257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38700251) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 110715 + ... + 111063.

It is an arithmetic number, because the mean of its divisors is an integer number (1986215).

Almost surely, 2^38700261 is an apocalyptic number.

It is an amenable number.

38700261 is a deficient number, since it is larger than the sum of its proper divisors (20886189).

38700261 is an equidigital number, since it uses as much as digits as its factorization.

38700261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 38700261 is about 6220.9533835257. The cubic root of 38700261 is about 338.2501241390.

The spelling of 38700261 in words is "thirty-eight million, seven hundred thousand, two hundred sixty-one".