75287340 has 96 divisors (see below), whose sum is σ = 236597760. Its totient is φ = 19873728.

The previous prime is 75287321. The next prime is 75287347. The reversal of 75287340 is 4378257.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 75287295 and 75287304.

It is not an unprimeable number, because it can be changed into a prime (75287347) 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, 57129 + ... + 58431.

It is an arithmetic number, because the mean of its divisors is an integer number (2464560).

Almost surely, 2^75287340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75287340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118298880).

75287340 is an abundant number, since it is smaller than the sum of its proper divisors (161310420).

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

75287340 is a wasteful number, since it uses less digits than its factorization.

75287340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 75287340 is about 8676.8277613423. The cubic root of 75287340 is about 422.2542062054.

The spelling of 75287340 in words is "seventy-five million, two hundred eighty-seven thousand, three hundred forty".