93812040 has 128 divisors (see below), whose sum is σ = 357408000. Its totient is φ = 21441024.

The previous prime is 93812027. The next prime is 93812123. The reversal of 93812040 is 4021839.

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

It is a junction number, because it is equal to n+sod(n) for n = 93811995 and 93812013.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1356 + ... + 13764.

It is an arithmetic number, because the mean of its divisors is an integer number (2792250).

Almost surely, 2^93812040 is an apocalyptic number.

93812040 is a gapful number since it is divisible by the number (90) 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 93812040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178704000).

93812040 is an abundant number, since it is smaller than the sum of its proper divisors (263595960).

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

93812040 is a wasteful number, since it uses less digits than its factorization.

93812040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12436 (or 12426 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 93812040 is about 9685.6615674924. The cubic root of 93812040 is about 454.3803342552.

Adding to 93812040 its reverse (4021839), we get a palindrome (97833879).

The spelling of 93812040 in words is "ninety-three million, eight hundred twelve thousand, forty".