49158570 has 64 divisors (see below), whose sum is σ = 123163776. Its totient is φ = 12545280.

The previous prime is 49158553. The next prime is 49158581. The reversal of 49158570 is 7585194.

49158570 is a nontrivial binomial coefficient, being equal to C(9916, 2).

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, 74040 + ... + 74700.

It is an arithmetic number, because the mean of its divisors is an integer number (1924434).

Almost surely, 2^49158570 is an apocalyptic number.

49158570 is the 9915-th triangular number and also the 4958-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49158570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61581888).

49158570 is an abundant number, since it is smaller than the sum of its proper divisors (74005206).

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

49158570 is a wasteful number, since it uses less digits than its factorization.

49158570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 49158570 is about 7011.3172799411. The cubic root of 49158570 is about 366.3248780110.

The spelling of 49158570 in words is "forty-nine million, one hundred fifty-eight thousand, five hundred seventy".