49403880 has 96 divisors (see below), whose sum is σ = 164946600. Its totient is φ = 12814848.

The previous prime is 49403873. The next prime is 49403891. The reversal of 49403880 is 8830494.

49403880 = 422² + 423² + ... + 606².

It can be written as a sum of positive squares in 4 ways, for example, as 43322724 + 6081156 = 6582^2 + 2466^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11466 + ... + 15174.

Almost surely, 2^49403880 is an apocalyptic number.

49403880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49403880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82473300).

49403880 is an abundant number, since it is smaller than the sum of its proper divisors (115542720).

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

49403880 is a wasteful number, since it uses less digits than its factorization.

49403880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763 (or 3756 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 49403880 is about 7028.7893694434. The cubic root of 49403880 is about 366.9332093161.

The spelling of 49403880 in words is "forty-nine million, four hundred three thousand, eight hundred eighty".