49749380 has 24 divisors (see below), whose sum is σ = 105403032. Its totient is φ = 19722752.

The previous prime is 49749373. The next prime is 49749383. The reversal of 49749380 is 8394794.

It can be written as a sum of positive squares in 4 ways, for example, as 440896 + 49308484 = 664^2 + 7022^2 .

It is not an unprimeable number, because it can be changed into a prime (49749383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8747 + ... + 13266.

It is an arithmetic number, because the mean of its divisors is an integer number (4391793).

Almost surely, 2^49749380 is an apocalyptic number.

It is an amenable number.

49749380 is an abundant number, since it is smaller than the sum of its proper divisors (55653652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49749380 is a wasteful number, since it uses less digits than its factorization.

49749380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22135 (or 22133 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 49749380 is about 7053.3240390613. The cubic root of 49749380 is about 367.7865905837.

The spelling of 49749380 in words is "forty-nine million, seven hundred forty-nine thousand, three hundred eighty".