36381905 has 16 divisors (see below), whose sum is σ = 50179584. Its totient is φ = 24805440.

The previous prime is 36381899. The next prime is 36381907. The reversal of 36381905 is 50918363.

It is not a de Polignac number, because 36381905 - 2⁴ = 36381889 is a prime.

It is a super-2 number, since 2×36381905² = 2647286022858050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (36381907) by changing a digit.

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, 3464 + ... + 9206.

It is an arithmetic number, because the mean of its divisors is an integer number (3136224).

Almost surely, 2^36381905 is an apocalyptic number.

36381905 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

36381905 is a deficient number, since it is larger than the sum of its proper divisors (13797679).

36381905 is a wasteful number, since it uses less digits than its factorization.

36381905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5936.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 36381905 is about 6031.7414566608. The cubic root of 36381905 is about 331.3562336376.

The spelling of 36381905 in words is "thirty-six million, three hundred eighty-one thousand, nine hundred five".