49223140 has 24 divisors (see below), whose sum is σ = 103554360. Its totient is φ = 19653888.

The previous prime is 49223099. The next prime is 49223159. The reversal of 49223140 is 4132294.

It can be written as a sum of positive squares in 4 ways, for example, as 6110784 + 43112356 = 2472^2 + 6566^2 .

It is a super-2 number, since 2×49223140² = 4845835022919200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11176 + ... + 14944.

It is an arithmetic number, because the mean of its divisors is an integer number (4314765).

Almost surely, 2^49223140 is an apocalyptic number.

It is an amenable number.

49223140 is an abundant number, since it is smaller than the sum of its proper divisors (54331220).

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

49223140 is a wasteful number, since it uses less digits than its factorization.

49223140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431 (or 4429 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 49223140 is about 7015.9204670521. The cubic root of 49223140 is about 366.4851976226.

It can be divided in two parts, 492 and 23140, that added together give a palindrome (23632).

The spelling of 49223140 in words is "forty-nine million, two hundred twenty-three thousand, one hundred forty".