75213740 has 24 divisors (see below), whose sum is σ = 180513312. Its totient is φ = 25787520.

The previous prime is 75213737. The next prime is 75213773. The reversal of 75213740 is 4731257.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268481 + ... + 268760.

It is an arithmetic number, because the mean of its divisors is an integer number (7521388).

Almost surely, 2^75213740 is an apocalyptic number.

75213740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75213740 is an abundant number, since it is smaller than the sum of its proper divisors (105299572).

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

75213740 is a wasteful number, since it uses less digits than its factorization.

75213740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537257 (or 537255 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 75213740 is about 8672.5855429624. The cubic root of 75213740 is about 422.1165644620.

Adding to 75213740 its reverse (4731257), we get a palindrome (79944997).

The spelling of 75213740 in words is "seventy-five million, two hundred thirteen thousand, seven hundred forty".