49978572 has 96 divisors (see below), whose sum is σ = 145797120. Its totient is φ = 12994560.

The previous prime is 49978567. The next prime is 49978597. The reversal of 49978572 is 27587994.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 43704 + ... + 44832.

It is an arithmetic number, because the mean of its divisors is an integer number (1518720).

Almost surely, 2^49978572 is an apocalyptic number.

49978572 is a gapful number since it is divisible by the number (42) 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 49978572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72898560).

49978572 is an abundant number, since it is smaller than the sum of its proper divisors (95818548).

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

49978572 is a wasteful number, since it uses less digits than its factorization.

49978572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1189 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 51.

The square root of 49978572 is about 7069.5524610827. The cubic root of 49978572 is about 368.3505147262.

The spelling of 49978572 in words is "forty-nine million, nine hundred seventy-eight thousand, five hundred seventy-two".