49928643 has 40 divisors (see below), whose sum is σ = 79976160. Its totient is φ = 30931200.

The previous prime is 49928629. The next prime is 49928647. The reversal of 49928643 is 34682994.

It is not a de Polignac number, because 49928643 - 2⁶ = 49928579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49928647) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 138898 + ... + 139256.

It is an arithmetic number, because the mean of its divisors is an integer number (1999404).

Almost surely, 2^49928643 is an apocalyptic number.

49928643 is a deficient number, since it is larger than the sum of its proper divisors (30047517).

49928643 is a wasteful number, since it uses less digits than its factorization.

49928643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 480 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 49928643 is about 7066.0203084905. The cubic root of 49928643 is about 368.2278121366.

The spelling of 49928643 in words is "forty-nine million, nine hundred twenty-eight thousand, six hundred forty-three".