38140007 has 4 divisors (see below), whose sum is σ = 39170856. Its totient is φ = 37109160.

The previous prime is 38139979. The next prime is 38140009. The reversal of 38140007 is 70004183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70004183 = 331 ⋅211493.

It is a cyclic number.

It is not a de Polignac number, because 38140007 - 2⁶ = 38139943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38140009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515369 + ... + 515442.

It is an arithmetic number, because the mean of its divisors is an integer number (9792714).

Almost surely, 2^38140007 is an apocalyptic number.

38140007 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

38140007 is a deficient number, since it is larger than the sum of its proper divisors (1030849).

38140007 is a wasteful number, since it uses less digits than its factorization.

38140007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030848.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 38140007 is about 6175.7596293897. The cubic root of 38140007 is about 336.6099294426.

The spelling of 38140007 in words is "thirty-eight million, one hundred forty thousand, seven".