74160240 has 160 divisors (see below), whose sum is σ = 286695936. Its totient is φ = 15406080.

The previous prime is 74160187. The next prime is 74160241. The reversal of 74160240 is 4206147.

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

It is a self number, because there is not a number n which added to its sum of digits gives 74160240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74160241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16474 + ... + 20486.

Almost surely, 2^74160240 is an apocalyptic number.

74160240 is a gapful number since it is divisible by the number (70) 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 74160240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143347968).

74160240 is an abundant number, since it is smaller than the sum of its proper divisors (212535696).

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

74160240 is a wasteful number, since it uses less digits than its factorization.

74160240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047 (or 4041 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 74160240 is about 8611.6339912934. The cubic root of 74160240 is about 420.1364635929.

Adding to 74160240 its reverse (4206147), we get a palindrome (78366387).

The spelling of 74160240 in words is "seventy-four million, one hundred sixty thousand, two hundred forty".