38743845 has 64 divisors (see below), whose sum is σ = 75423744. Its totient is φ = 16600320.

The previous prime is 38743841. The next prime is 38743849. The reversal of 38743845 is 54834783.

It is an interprime number because it is at equal distance from previous prime (38743841) and next prime (38743849).

It is not a de Polignac number, because 38743845 - 2² = 38743841 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38743797 and 38743806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38743841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147184 + ... + 147446.

It is an arithmetic number, because the mean of its divisors is an integer number (1178496).

Almost surely, 2^38743845 is an apocalyptic number.

38743845 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38743845 is a deficient number, since it is larger than the sum of its proper divisors (36679899).

38743845 is a wasteful number, since it uses less digits than its factorization.

38743845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362.

The product of its digits is 322560, while the sum is 42.

The square root of 38743845 is about 6224.4553978641. The cubic root of 38743845 is about 338.3770549164.

The spelling of 38743845 in words is "thirty-eight million, seven hundred forty-three thousand, eight hundred forty-five".