38421716 has 6 divisors (see below), whose sum is σ = 67238010. Its totient is φ = 19210856.

The previous prime is 38421703. The next prime is 38421727. The reversal of 38421716 is 61712483.

It can be written as a sum of positive squares in only one way, i.e., 19324816 + 19096900 = 4396^2 + 4370^2 .

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, 4802711 + ... + 4802718.

It is an arithmetic number, because the mean of its divisors is an integer number (11206335).

Almost surely, 2^38421716 is an apocalyptic number.

It is an amenable number.

38421716 is a deficient number, since it is larger than the sum of its proper divisors (28816294).

38421716 is a wasteful number, since it uses less digits than its factorization.

38421716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9605433 (or 9605431 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 38421716 is about 6198.5253084907. The cubic root of 38421716 is about 337.4366513018.

The spelling of 38421716 in words is "thirty-eight million, four hundred twenty-one thousand, seven hundred sixteen".