38406772 has 6 divisors (see below), whose sum is σ = 67211858. Its totient is φ = 19203384.

The previous prime is 38406763. The next prime is 38406883. The reversal of 38406772 is 27760483.

It can be written as a sum of positive squares in only one way, i.e., 34999056 + 3407716 = 5916^2 + 1846^2 .

It is a super-3 number, since 3×38406772³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4800843 + ... + 4800850.

Almost surely, 2^38406772 is an apocalyptic number.

It is an amenable number.

38406772 is a deficient number, since it is larger than the sum of its proper divisors (28805086).

38406772 is a wasteful number, since it uses less digits than its factorization.

38406772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9601697 (or 9601695 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 38406772 is about 6197.3197432438. The cubic root of 38406772 is about 337.3928973370.

The spelling of 38406772 in words is "thirty-eight million, four hundred six thousand, seven hundred seventy-two".