49403520 has 160 divisors (see below), whose sum is σ = 176614020. Its totient is φ = 13160448.

The previous prime is 49403461. The next prime is 49403521. The reversal of 49403520 is 2530494.

It can be written as a sum of positive squares in 2 ways, for example, as 48776256 + 627264 = 6984^2 + 792^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (49403521) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51364 + ... + 52316.

Almost surely, 2^49403520 is an apocalyptic number.

49403520 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 49403520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88307010).

49403520 is an abundant number, since it is smaller than the sum of its proper divisors (127210500).

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

49403520 is an equidigital number, since it uses as much as digits as its factorization.

49403520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 49403520 is about 7028.7637604347. The cubic root of 49403520 is about 366.9323180482.

The spelling of 49403520 in words is "forty-nine million, four hundred three thousand, five hundred twenty".