1034401021 has 16 divisors (see below), whose sum is σ = 1112379840. Its totient is φ = 958988160.

The previous prime is 1034401009. The next prime is 1034401031. The reversal of 1034401021 is 1201044301.

It is a cyclic number.

It is not a de Polignac number, because 1034401021 - 2⁹ = 1034400509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1034400986 and 1034401004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1034401001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178851 + ... + 184543.

It is an arithmetic number, because the mean of its divisors is an integer number (69523740).

Almost surely, 2^1034401021 is an apocalyptic number.

It is an amenable number.

1034401021 is a deficient number, since it is larger than the sum of its proper divisors (77978819).

1034401021 is a wasteful number, since it uses less digits than its factorization.

1034401021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5916.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1034401021 is about 32162.1053570813. The cubic root of 1034401021 is about 1011.3379715701.

Adding to 1034401021 its reverse (1201044301), we get a palindrome (2235445322).

The spelling of 1034401021 in words is "one billion, thirty-four million, four hundred one thousand, twenty-one".