90469019 has 8 divisors (see below), whose sum is σ = 96671520. Its totient is φ = 84364416.

The previous prime is 90468997. The next prime is 90469037. The reversal of 90469019 is 91096409.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90469019 is a prime.

It is a super-2 number, since 2×90469019² = 16369286797644722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90469319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22559 + ... + 26264.

It is an arithmetic number, because the mean of its divisors is an integer number (12083940).

Almost surely, 2^90469019 is an apocalyptic number.

90469019 is a deficient number, since it is larger than the sum of its proper divisors (6202501).

90469019 is a wasteful number, since it uses less digits than its factorization.

90469019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48949.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 90469019 is about 9511.5203306306. The cubic root of 90469019 is about 448.9175944126.

The spelling of 90469019 in words is "ninety million, four hundred sixty-nine thousand, nineteen".