39149469 has 12 divisors (see below), whose sum is σ = 56836000. Its totient is φ = 25967304.

The previous prime is 39149459. The next prime is 39149483. The reversal of 39149469 is 96494193.

It is not a de Polignac number, because 39149469 - 2²¹ = 37052317 is a prime.

It is a super-2 number, since 2×39149469² = 3065361845963922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39149459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9139 + ... + 12720.

Almost surely, 2^39149469 is an apocalyptic number.

It is an amenable number.

39149469 is a deficient number, since it is larger than the sum of its proper divisors (17686531).

39149469 is a wasteful number, since it uses less digits than its factorization.

39149469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22064 (or 22061 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 39149469 is about 6256.9536517382. The cubic root of 39149469 is about 339.5538236274.

The spelling of 39149469 in words is "thirty-nine million, one hundred forty-nine thousand, four hundred sixty-nine".