1021300398 has 24 divisors (see below), whose sum is σ = 2342983968. Its totient is φ = 320407872.

The previous prime is 1021300393. The next prime is 1021300411. The reversal of 1021300398 is 8930031201.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021300393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1668486 + ... + 1669097.

It is an arithmetic number, because the mean of its divisors is an integer number (97624332).

Almost surely, 2^1021300398 is an apocalyptic number.

1021300398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1021300398 is an abundant number, since it is smaller than the sum of its proper divisors (1321683570).

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

1021300398 is a wasteful number, since it uses less digits than its factorization.

1021300398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337608 (or 3337605 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1021300398 is about 31957.7908810981. The cubic root of 1021300398 is about 1007.0503089935.

Adding to 1021300398 its reverse (8930031201), we get a palindrome (9951331599).

The spelling of 1021300398 in words is "one billion, twenty-one million, three hundred thousand, three hundred ninety-eight".