1007475978 has 16 divisors (see below), whose sum is σ = 2018576160. Its totient is φ = 335221296.

The previous prime is 1007475977. The next prime is 1007476027. The reversal of 1007475978 is 8795747001.

It is not an unprimeable number, because it can be changed into a prime (1007475971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147388 + ... + 154071.

It is an arithmetic number, because the mean of its divisors is an integer number (126161010).

Almost surely, 2^1007475978 is an apocalyptic number.

1007475978 is an abundant number, since it is smaller than the sum of its proper divisors (1011100182).

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

1007475978 is a wasteful number, since it uses less digits than its factorization.

1007475978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302021.

The product of its (nonzero) digits is 493920, while the sum is 48.

The square root of 1007475978 is about 31740.7620891497. The cubic root of 1007475978 is about 1002.4858083036.

The spelling of 1007475978 in words is "one billion, seven million, four hundred seventy-five thousand, nine hundred seventy-eight".