90453378 has 32 divisors (see below), whose sum is σ = 189034560. Its totient is φ = 28817600.

The previous prime is 90453359. The next prime is 90453383. The reversal of 90453378 is 87335409.

It is a super-2 number, since 2×90453378² = 16363627183221768, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15001 + ... + 20147.

It is an arithmetic number, because the mean of its divisors is an integer number (5907330).

Almost surely, 2^90453378 is an apocalyptic number.

90453378 is an abundant number, since it is smaller than the sum of its proper divisors (98581182).

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

90453378 is a wasteful number, since it uses less digits than its factorization.

90453378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 90453378 is about 9510.6980816342. The cubic root of 90453378 is about 448.8917221127.

The spelling of 90453378 in words is "ninety million, four hundred fifty-three thousand, three hundred seventy-eight".