1033721004 has 24 divisors (see below), whose sum is σ = 2442549760. Its totient is φ = 340211664.

The previous prime is 1033720991. The next prime is 1033721119. The reversal of 1033721004 is 4001273301.

It is a super-2 number, since 2×1033721004² = 2137158228221536032, which contains 22 as substring.

It is an unprimeable number.

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, 544264 + ... + 546159.

Almost surely, 2^1033721004 is an apocalyptic number.

It is an amenable number.

1033721004 is an abundant number, since it is smaller than the sum of its proper divisors (1408828756).

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

1033721004 is a wasteful number, since it uses less digits than its factorization.

1033721004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090509 (or 1090507 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1033721004 is about 32151.5319075157. The cubic root of 1033721004 is about 1011.1163045510.

Adding to 1033721004 its reverse (4001273301), we get a palindrome (5034994305).

The spelling of 1033721004 in words is "one billion, thirty-three million, seven hundred twenty-one thousand, four".