75451940 has 24 divisors (see below), whose sum is σ = 158750592. Its totient is φ = 30123360.

The previous prime is 75451927. The next prime is 75451969. The reversal of 75451940 is 4915457.

It is a self number, because there is not a number n which added to its sum of digits gives 75451940.

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, 8117 + ... + 14723.

It is an arithmetic number, because the mean of its divisors is an integer number (6614608).

Almost surely, 2^75451940 is an apocalyptic number.

It is an amenable number.

75451940 is an abundant number, since it is smaller than the sum of its proper divisors (83298652).

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

75451940 is a wasteful number, since it uses less digits than its factorization.

75451940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7187 (or 7185 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 75451940 is about 8686.3076160127. The cubic root of 75451940 is about 422.5617056800.

The spelling of 75451940 in words is "seventy-five million, four hundred fifty-one thousand, nine hundred forty".