83333340 has 48 divisors (see below), whose sum is σ = 259260960. Its totient is φ = 22222080.

The previous prime is 83333333. The next prime is 83333351. The reversal of 83333340 is 4333338.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76621 + ... + 77700.

It is an arithmetic number, because the mean of its divisors is an integer number (5401270).

Almost surely, 2^83333340 is an apocalyptic number.

It is an amenable number.

83333340 is an abundant number, since it is smaller than the sum of its proper divisors (175927620).

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

83333340 is a wasteful number, since it uses less digits than its factorization.

83333340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154339 (or 154331 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

The square root of 83333340 is about 9128.7096569011. The cubic root of 83333340 is about 436.7902440159.

Adding to 83333340 its reverse (4333338), we get a palindrome (87666678).

The spelling of 83333340 in words is "eighty-three million, three hundred thirty-three thousand, three hundred forty".