68150040 has 64 divisors (see below), whose sum is σ = 233660160. Its totient is φ = 15576960.

The previous prime is 68150039. The next prime is 68150051. The reversal of 68150040 is 4005186.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 39726 + ... + 41405.

It is an arithmetic number, because the mean of its divisors is an integer number (3650940).

Almost surely, 2^68150040 is an apocalyptic number.

68150040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68150040 is an abundant number, since it is smaller than the sum of its proper divisors (165510120).

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

68150040 is a wasteful number, since it uses less digits than its factorization.

68150040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81152 (or 81148 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 68150040 is about 8255.3037497115. The cubic root of 68150040 is about 408.4654913977.

It can be divided in two parts, 681 and 50040, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 68150040 in words is "sixty-eight million, one hundred fifty thousand, forty".