83888440 has 16 divisors (see below), whose sum is σ = 188749080. Its totient is φ = 33555360.

The previous prime is 83888411. The next prime is 83888447. The reversal of 83888440 is 4488838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83888447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048566 + ... + 1048645.

Almost surely, 2^83888440 is an apocalyptic number.

It is an amenable number.

83888440 is an abundant number, since it is smaller than the sum of its proper divisors (104860640).

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

83888440 is a wasteful number, since it uses less digits than its factorization.

83888440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097222 (or 2097218 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 43.

The square root of 83888440 is about 9159.0632708809. The cubic root of 83888440 is about 437.7579474776.

The spelling of 83888440 in words is "eighty-three million, eight hundred eighty-eight thousand, four hundred forty".