49158890 has 64 divisors (see below), whose sum is σ = 104163840. Its totient is φ = 16511040.

The previous prime is 49158887. The next prime is 49158899. The reversal of 49158890 is 9885194.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49158899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89597 + ... + 90143.

It is an arithmetic number, because the mean of its divisors is an integer number (1627560).

Almost surely, 2^49158890 is an apocalyptic number.

49158890 is an abundant number, since it is smaller than the sum of its proper divisors (55004950).

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

49158890 is a wasteful number, since it uses less digits than its factorization.

49158890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 49158890 is about 7011.3401001520. The cubic root of 49158890 is about 366.3256728788.

The spelling of 49158890 in words is "forty-nine million, one hundred fifty-eight thousand, eight hundred ninety".