1001402450 has 48 divisors (see below), whose sum is σ = 1913643144. Its totient is φ = 389644800.

The previous prime is 1001402449. The next prime is 1001402483. The reversal of 1001402450 is 542041001.

It can be written as a sum of positive squares in 12 ways, for example, as 7198489 + 994203961 = 2683^2 + 31531^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1141412 + ... + 1142288.

Almost surely, 2^1001402450 is an apocalyptic number.

1001402450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001402450 is a deficient number, since it is larger than the sum of its proper divisors (912240694).

1001402450 is a wasteful number, since it uses less digits than its factorization.

1001402450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1001402450 is about 31644.9435139328. The cubic root of 1001402450 is about 1000.4672649628.

Adding to 1001402450 its reverse (542041001), we get a palindrome (1543443451).

The spelling of 1001402450 in words is "one billion, one million, four hundred two thousand, four hundred fifty".