49144890 has 32 divisors (see below), whose sum is σ = 118371456. Its totient is φ = 13058240.

The previous prime is 49144877. The next prime is 49144897. The reversal of 49144890 is 9844194.

It is a super-2 number, since 2×49144890² = 4830440426224200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49144897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5995 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (3699108).

Almost surely, 2^49144890 is an apocalyptic number.

49144890 is an abundant number, since it is smaller than the sum of its proper divisors (69226566).

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

49144890 is a wasteful number, since it uses less digits than its factorization.

49144890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5894.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 49144890 is about 7010.3416464535. The cubic root of 49144890 is about 366.2908941823.

The spelling of 49144890 in words is "forty-nine million, one hundred forty-four thousand, eight hundred ninety".