49503780 has 72 divisors (see below), whose sum is σ = 154240632. Its totient is φ = 12842496.

The previous prime is 49503739. The next prime is 49503787. The reversal of 49503780 is 8730594.

49503780 = T₄₂₄ + T₄₂₅ + ... + T₇₁₉.

It can be written as a sum of positive squares in 4 ways, for example, as 3779136 + 45724644 = 1944^2 + 6762^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49503787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2944 + ... + 10376.

It is an arithmetic number, because the mean of its divisors is an integer number (2142231).

Almost surely, 2^49503780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49503780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77120316).

49503780 is an abundant number, since it is smaller than the sum of its proper divisors (104736852).

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

49503780 is a wasteful number, since it uses less digits than its factorization.

49503780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7485 (or 7480 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 49503780 is about 7035.8922675095. The cubic root of 49503780 is about 367.1803690361.

The spelling of 49503780 in words is "forty-nine million, five hundred three thousand, seven hundred eighty".