49748040 has 128 divisors (see below), whose sum is σ = 168364800. Its totient is φ = 13063680.

The previous prime is 49748003. The next prime is 49748081. The reversal of 49748040 is 4084794.

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

It is a junction number, because it is equal to n+sod(n) for n = 49747986 and 49748004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78525 + ... + 79155.

It is an arithmetic number, because the mean of its divisors is an integer number (1315350).

Almost surely, 2^49748040 is an apocalyptic number.

49748040 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 49748040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84182400).

49748040 is an abundant number, since it is smaller than the sum of its proper divisors (118616760).

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

49748040 is a wasteful number, since it uses less digits than its factorization.

49748040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 49748040 is about 7053.2290477483. The cubic root of 49748040 is about 367.7832884423.

The spelling of 49748040 in words is "forty-nine million, seven hundred forty-eight thousand, forty".