83369440 has 192 divisors, whose sum is σ = 251693568. Its totient is φ = 25344000.

The previous prime is 83369437. The next prime is 83369443. The reversal of 83369440 is 4496338.

It is an interprime number because it is at equal distance from previous prime (83369437) and next prime (83369443).

It is a self number, because there is not a number n which added to its sum of digits gives 83369440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83369443) 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 31 ways as a sum of consecutive naturals, for example, 825390 + ... + 825490.

It is an arithmetic number, because the mean of its divisors is an integer number (1310904).

Almost surely, 2^83369440 is an apocalyptic number.

83369440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83369440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125846784).

83369440 is an abundant number, since it is smaller than the sum of its proper divisors (168324128).

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

83369440 is a wasteful number, since it uses less digits than its factorization.

83369440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 83369440 is about 9130.6867211618. The cubic root of 83369440 is about 436.8533074166.

The spelling of 83369440 in words is "eighty-three million, three hundred sixty-nine thousand, four hundred forty".