1010402000 has 40 divisors (see below), whose sum is σ = 2443156872. Its totient is φ = 404160000.

The previous prime is 1010401999. The next prime is 1010402011. The reversal of 1010402000 is 2040101.

It can be written as a sum of positive squares in 4 ways, for example, as 47665216 + 962736784 = 6904^2 + 31028^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 250601 + ... + 254600.

Almost surely, 2^1010402000 is an apocalyptic number.

1010402000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010402000 is an abundant number, since it is smaller than the sum of its proper divisors (1432754872).

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

1010402000 is an equidigital number, since it uses as much as digits as its factorization.

1010402000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505224 (or 505208 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1010402000 is about 31786.8211685283. The cubic root of 1010402000 is about 1003.4553799309.

Adding to 1010402000 its reverse (2040101), we get a palindrome (1012442101).

The spelling of 1010402000 in words is "one billion, ten million, four hundred two thousand".