90101340 has 144 divisors (see below), whose sum is σ = 319807488. Its totient is φ = 20103552.

The previous prime is 90101339. The next prime is 90101351. The reversal of 90101340 is 4310109.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53349 + ... + 55011.

Almost surely, 2^90101340 is an apocalyptic number.

90101340 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90101340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159903744).

90101340 is an abundant number, since it is smaller than the sum of its proper divisors (229706148).

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

90101340 is a wasteful number, since it uses less digits than its factorization.

90101340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 90101340 is about 9492.1725648031. The cubic root of 90101340 is about 448.3086136215.

Adding to 90101340 its reverse (4310109), we get a palindrome (94411449).

The spelling of 90101340 in words is "ninety million, one hundred one thousand, three hundred forty".