75449870 has 16 divisors (see below), whose sum is σ = 136377648. Its totient is φ = 30053760.

The previous prime is 75449861. The next prime is 75449887. The reversal of 75449870 is 7894457.

It is a congruent number.

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, 13244 + ... + 18063.

It is an arithmetic number, because the mean of its divisors is an integer number (8523603).

Almost surely, 2^75449870 is an apocalyptic number.

75449870 is a deficient number, since it is larger than the sum of its proper divisors (60927778).

75449870 is a wasteful number, since it uses less digits than its factorization.

75449870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31555.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 75449870 is about 8686.1884621507. The cubic root of 75449870 is about 422.5578413627.

The spelling of 75449870 in words is "seventy-five million, four hundred forty-nine thousand, eight hundred seventy".