38342731 has 16 divisors (see below), whose sum is σ = 44641728. Its totient is φ = 32256000.

The previous prime is 38342719. The next prime is 38342737. The reversal of 38342731 is 13724383.

It is not a de Polignac number, because 38342731 - 2¹⁷ = 38211659 is a prime.

It is a super-2 number, since 2×38342731² = 2940330041076722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38342693 and 38342702.

It is not an unprimeable number, because it can be changed into a prime (38342737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136311 + ... + 136591.

It is an arithmetic number, because the mean of its divisors is an integer number (2790108).

Almost surely, 2^38342731 is an apocalyptic number.

38342731 is a deficient number, since it is larger than the sum of its proper divisors (6298997).

38342731 is a wasteful number, since it uses less digits than its factorization.

38342731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582.

The product of its digits is 12096, while the sum is 31.

The square root of 38342731 is about 6192.1507572087. The cubic root of 38342731 is about 337.2052655036.

The spelling of 38342731 in words is "thirty-eight million, three hundred forty-two thousand, seven hundred thirty-one".