90219468 has 48 divisors (see below), whose sum is σ = 217221984. Its totient is φ = 29122560.

The previous prime is 90219463. The next prime is 90219469. The reversal of 90219468 is 86491209.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (90219463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140428 + ... + 141068.

It is an arithmetic number, because the mean of its divisors is an integer number (4525458).

Almost surely, 2^90219468 is an apocalyptic number.

It is an amenable number.

90219468 is an abundant number, since it is smaller than the sum of its proper divisors (127002516).

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

90219468 is a wasteful number, since it uses less digits than its factorization.

90219468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 90219468 is about 9498.3929166991. The cubic root of 90219468 is about 448.5044474577.

The spelling of 90219468 in words is "ninety million, two hundred nineteen thousand, four hundred sixty-eight".