90344460 has 96 divisors (see below), whose sum is σ = 279562752. Its totient is φ = 21683200.

The previous prime is 90344459. The next prime is 90344461. The reversal of 90344460 is 6444309.

It is an interprime number because it is at equal distance from previous prime (90344459) and next prime (90344461).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (90344461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21535 + ... + 25385.

It is an arithmetic number, because the mean of its divisors is an integer number (2912112).

Almost surely, 2^90344460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90344460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139781376).

90344460 is an abundant number, since it is smaller than the sum of its proper divisors (189218292).

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

90344460 is a wasteful number, since it uses less digits than its factorization.

90344460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903 (or 3901 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 90344460 is about 9504.9702787542. The cubic root of 90344460 is about 448.7114744641.

Adding to 90344460 its reverse (6444309), we get a palindrome (96788769).

The spelling of 90344460 in words is "ninety million, three hundred forty-four thousand, four hundred sixty".