90840348 has 18 divisors (see below), whose sum is σ = 229624304. Its totient is φ = 30280104.

The previous prime is 90840341. The next prime is 90840377. The reversal of 90840348 is 84304809.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×90840348² = 16503937649522208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2523343 = 90840348 / (9 + 0 + 8 + 4 + 0 + 3 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90840341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1261636 + ... + 1261707.

Almost surely, 2^90840348 is an apocalyptic number.

It is an amenable number.

90840348 is an abundant number, since it is smaller than the sum of its proper divisors (138783956).

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

90840348 is a wasteful number, since it uses less digits than its factorization.

90840348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523353 (or 2523348 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 90840348 is about 9531.0203021502. The cubic root of 90840348 is about 449.5309482969.

The spelling of 90840348 in words is "ninety million, eight hundred forty thousand, three hundred forty-eight".