49571970 has 64 divisors (see below), whose sum is σ = 137237760. Its totient is φ = 11225088.

The previous prime is 49571953. The next prime is 49572023. The reversal of 49571970 is 7917594.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22686 + ... + 24774.

It is an arithmetic number, because the mean of its divisors is an integer number (2144340).

Almost surely, 2^49571970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49571970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68618880).

49571970 is an abundant number, since it is smaller than the sum of its proper divisors (87665790).

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

49571970 is a wasteful number, since it uses less digits than its factorization.

49571970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 49571970 is about 7040.7364671602. The cubic root of 49571970 is about 367.3488850684.

The spelling of 49571970 in words is "forty-nine million, five hundred seventy-one thousand, nine hundred seventy".