90190010 has 8 divisors (see below), whose sum is σ = 162342036. Its totient is φ = 36076000.

The previous prime is 90190007. The next prime is 90190013. The reversal of 90190010 is 1009109.

90190010 = 2736² + 2737² + ... + 2747².

It is an interprime number because it is at equal distance from previous prime (90190007) and next prime (90190013).

It can be written as a sum of positive squares in 2 ways, for example, as 89434849 + 755161 = 9457^2 + 869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90190013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4509491 + ... + 4509510.

Almost surely, 2^90190010 is an apocalyptic number.

90190010 is a deficient number, since it is larger than the sum of its proper divisors (72152026).

90190010 is a wasteful number, since it uses less digits than its factorization.

90190010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9019008.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 90190010 is about 9496.8421067216. The cubic root of 90190010 is about 448.4556276832.

Adding to 90190010 its reverse (1009109), we get a palindrome (91199119).

The spelling of 90190010 in words is "ninety million, one hundred ninety thousand, ten".