38745405 has 16 divisors (see below), whose sum is σ = 68880960. Its totient is φ = 20664144.

The previous prime is 38745391. The next prime is 38745419. The reversal of 38745405 is 50454783.

It is an interprime number because it is at equal distance from previous prime (38745391) and next prime (38745419).

It is not a de Polignac number, because 38745405 - 2⁵ = 38745373 is a prime.

It is a super-2 number, since 2×38745405² = 3002412817228050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38745405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143367 + ... + 143636.

It is an arithmetic number, because the mean of its divisors is an integer number (4305060).

Almost surely, 2^38745405 is an apocalyptic number.

It is an amenable number.

38745405 is a deficient number, since it is larger than the sum of its proper divisors (30135555).

38745405 is a wasteful number, since it uses less digits than its factorization.

38745405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287017 (or 287011 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 38745405 is about 6224.5807087707. The cubic root of 38745405 is about 338.3815963786.

The spelling of 38745405 in words is "thirty-eight million, seven hundred forty-five thousand, four hundred five".