89949140 has 24 divisors (see below), whose sum is σ = 191483880. Its totient is φ = 35486208.

The previous prime is 89949133. The next prime is 89949143. The reversal of 89949140 is 4194998.

It can be written as a sum of positive squares in 4 ways, for example, as 1175056 + 88774084 = 1084^2 + 9422^2 .

It is a junction number, because it is equal to n+sod(n) for n = 89949091 and 89949100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89949143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29345 + ... + 32264.

It is an arithmetic number, because the mean of its divisors is an integer number (7978495).

Almost surely, 2^89949140 is an apocalyptic number.

It is an amenable number.

89949140 is an abundant number, since it is smaller than the sum of its proper divisors (101534740).

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

89949140 is a wasteful number, since it uses less digits than its factorization.

89949140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61691 (or 61689 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 89949140 is about 9484.1520443316. The cubic root of 89949140 is about 448.0560423620.

The spelling of 89949140 in words is "eighty-nine million, nine hundred forty-nine thousand, one hundred forty".