49039969 has 24 divisors (see below), whose sum is σ = 57647520. Its totient is φ = 41564160.

The previous prime is 49039943. The next prime is 49039973. The reversal of 49039969 is 96993094.

It is not a de Polignac number, because 49039969 - 2¹¹ = 49037921 is a prime.

It is a super-2 number, since 2×49039969² = 4809837119041922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49039069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190689 + ... + 190945.

It is an arithmetic number, because the mean of its divisors is an integer number (2401980).

Almost surely, 2^49039969 is an apocalyptic number.

It is an amenable number.

49039969 is a deficient number, since it is larger than the sum of its proper divisors (8607551).

49039969 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (49039968) it forms an eRAP, since the sums of their prime factors are consecutive (380 and 381).

49039969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 49039969 is about 7002.8543466218. The cubic root of 49039969 is about 366.0300397373.

The spelling of 49039969 in words is "forty-nine million, thirty-nine thousand, nine hundred sixty-nine".