38456649 has 48 divisors (see below), whose sum is σ = 69848064. Its totient is φ = 19807200.

The previous prime is 38456629. The next prime is 38456651. The reversal of 38456649 is 94665483.

38456649 is a `hidden beast` number, since 3 + 84 + 566 + 4 + 9 = 666.

38456649 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 38456649 - 2⁷ = 38456521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38456609) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146092 + ... + 146354.

It is an arithmetic number, because the mean of its divisors is an integer number (1455168).

Almost surely, 2^38456649 is an apocalyptic number.

It is an amenable number.

38456649 is a deficient number, since it is larger than the sum of its proper divisors (31391415).

38456649 is a wasteful number, since it uses less digits than its factorization.

38456649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 495 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 38456649 is about 6201.3425159396. The cubic root of 38456649 is about 337.5388860544.

The spelling of 38456649 in words is "thirty-eight million, four hundred fifty-six thousand, six hundred forty-nine".