90541380 has 48 divisors (see below), whose sum is σ = 256584384. Its totient is φ = 23852160.

The previous prime is 90541379. The next prime is 90541387. The reversal of 90541380 is 8314509.

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 (90541387) 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, 4111 + ... + 14070.

It is an arithmetic number, because the mean of its divisors is an integer number (5345508).

Almost surely, 2^90541380 is an apocalyptic number.

It is an amenable number.

90541380 is an abundant number, since it is smaller than the sum of its proper divisors (166043004).

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

90541380 is a wasteful number, since it uses less digits than its factorization.

90541380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18276 (or 18274 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 90541380 is about 9515.3234311819. The cubic root of 90541380 is about 449.0372503623.

Adding to 90541380 its reverse (8314509), we get a palindrome (98855889).

The spelling of 90541380 in words is "ninety million, five hundred forty-one thousand, three hundred eighty".