90029448 has 64 divisors (see below), whose sum is σ = 263256000. Its totient is φ = 28429056.

The previous prime is 90029447. The next prime is 90029449. The reversal of 90029448 is 84492009.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90029447) and next prime (90029449).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (90029447) 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, 6865 + ... + 15072.

It is an arithmetic number, because the mean of its divisors is an integer number (4113375).

Almost surely, 2^90029448 is an apocalyptic number.

It is an amenable number.

90029448 is an abundant number, since it is smaller than the sum of its proper divisors (173226552).

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

90029448 is a wasteful number, since it uses less digits than its factorization.

90029448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21971 (or 21961 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 90029448 is about 9488.3848994442. The cubic root of 90029448 is about 448.1893465136.

The spelling of 90029448 in words is "ninety million, twenty-nine thousand, four hundred forty-eight".