1025946090 has 96 divisors (see below), whose sum is σ = 3041687376. Its totient is φ = 237680640.

The previous prime is 1025946083. The next prime is 1025946121. The reversal of 1025946090 is 906495201.

1025946090 is a `hidden beast` number, since 1 + 0 + 2 + 594 + 60 + 9 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 94536729 + 931409361 = 9723^2 + 30519^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5901 + ... + 45680.

Almost surely, 2^1025946090 is an apocalyptic number.

1025946090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025946090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1520843688).

1025946090 is an abundant number, since it is smaller than the sum of its proper divisors (2015741286).

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

1025946090 is a wasteful number, since it uses less digits than its factorization.

1025946090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51624 (or 51621 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1025946090 is about 32030.3932226877. The cubic root of 1025946090 is about 1008.5749566139.

The spelling of 1025946090 in words is "one billion, twenty-five million, nine hundred forty-six thousand, ninety".