1190021004 has 24 divisors (see below), whose sum is σ = 3085239920. Its totient is φ = 396673632.

The previous prime is 1190020999. The next prime is 1190021009. The reversal of 1190021004 is 4001200911.

1190021004 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1190020999) and next prime (1190021009).

It is a super-2 number, since 2×1190021004² = 2832299979922336032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1190021009) 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, 5509249 + ... + 5509464.

Almost surely, 2^1190021004 is an apocalyptic number.

It is an amenable number.

1190021004 is an abundant number, since it is smaller than the sum of its proper divisors (1895218916).

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

1190021004 is a wasteful number, since it uses less digits than its factorization.

1190021004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11018726 (or 11018718 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1190021004 is about 34496.6810577481. The cubic root of 1190021004 is about 1059.7047367961.

Adding to 1190021004 its reverse (4001200911), we get a palindrome (5191221915).

The spelling of 1190021004 in words is "one billion, one hundred ninety million, twenty-one thousand, four".