49739805 has 16 divisors (see below), whose sum is σ = 88426560. Its totient is φ = 26527824.

The previous prime is 49739801. The next prime is 49739813. The reversal of 49739805 is 50893794.

It is not a de Polignac number, because 49739805 - 2² = 49739801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49739801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184087 + ... + 184356.

It is an arithmetic number, because the mean of its divisors is an integer number (5526660).

Almost surely, 2^49739805 is an apocalyptic number.

49739805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49739805 is a deficient number, since it is larger than the sum of its proper divisors (38686755).

49739805 is a wasteful number, since it uses less digits than its factorization.

49739805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368457 (or 368451 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 49739805 is about 7052.6452484157. The cubic root of 49739805 is about 367.7629937566.

The spelling of 49739805 in words is "forty-nine million, seven hundred thirty-nine thousand, eight hundred five".