1004157764 has 24 divisors (see below), whose sum is σ = 1776606048. Its totient is φ = 496571840.

The previous prime is 1004157731. The next prime is 1004157767. The reversal of 1004157764 is 4677514001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1004157767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324167 + ... + 327249.

It is an arithmetic number, because the mean of its divisors is an integer number (74025252).

Almost surely, 2^1004157764 is an apocalyptic number.

It is an amenable number.

1004157764 is a deficient number, since it is larger than the sum of its proper divisors (772448284).

1004157764 is a wasteful number, since it uses less digits than its factorization.

1004157764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955 (or 3953 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1004157764 is about 31688.4484315657. The cubic root of 1004157764 is about 1001.3840049799.

The spelling of 1004157764 in words is "one billion, four million, one hundred fifty-seven thousand, seven hundred sixty-four".