49123380 has 24 divisors (see below), whose sum is σ = 137545632. Its totient is φ = 13099552.

The previous prime is 49123367. The next prime is 49123381. The reversal of 49123380 is 8332194.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49123381) 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, 409302 + ... + 409421.

It is an arithmetic number, because the mean of its divisors is an integer number (5731068).

Almost surely, 2^49123380 is an apocalyptic number.

It is an amenable number.

49123380 is an abundant number, since it is smaller than the sum of its proper divisors (88422252).

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

49123380 is a wasteful number, since it uses less digits than its factorization.

49123380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818735 (or 818733 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 49123380 is about 7008.8073165126. The cubic root of 49123380 is about 366.2374463270.

It can be divided in two parts, 491 and 23380, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 49123380 in words is "forty-nine million, one hundred twenty-three thousand, three hundred eighty".