49907449 has 4 divisors (see below), whose sum is σ = 50206464. Its totient is φ = 49608436.

The previous prime is 49907443. The next prime is 49907491. The reversal of 49907449 is 94470994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94470994 = 2 ⋅47235497.

It is a cyclic number.

It is not a de Polignac number, because 49907449 - 2⁷ = 49907321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49907399 and 49907408.

It is not an unprimeable number, because it can be changed into a prime (49907443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149257 + ... + 149590.

It is an arithmetic number, because the mean of its divisors is an integer number (12551616).

Almost surely, 2^49907449 is an apocalyptic number.

It is an amenable number.

49907449 is a deficient number, since it is larger than the sum of its proper divisors (299015).

49907449 is a wasteful number, since it uses less digits than its factorization.

49907449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299014.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 49907449 is about 7064.5204366609. The cubic root of 49907449 is about 368.1757022701.

The spelling of 49907449 in words is "forty-nine million, nine hundred seven thousand, four hundred forty-nine".