1021400032 has 12 divisors (see below), whose sum is σ = 2010881376. Its totient is φ = 510700000.

The previous prime is 1021400021. The next prime is 1021400033. The reversal of 1021400032 is 2300041201.

1021400032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1021399985 and 1021400021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021400033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15959344 + ... + 15959407.

It is an arithmetic number, because the mean of its divisors is an integer number (167573448).

Almost surely, 2^1021400032 is an apocalyptic number.

It is an amenable number.

1021400032 is a deficient number, since it is larger than the sum of its proper divisors (989481344).

1021400032 is an equidigital number, since it uses as much as digits as its factorization.

1021400032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31918761 (or 31918753 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1021400032 is about 31959.3496804926. The cubic root of 1021400032 is about 1007.0830558680.

Adding to 1021400032 its reverse (2300041201), we get a palindrome (3321441233).

The spelling of 1021400032 in words is "one billion, twenty-one million, four hundred thousand, thirty-two".