90454378 has 8 divisors (see below), whose sum is σ = 155064672. Its totient is φ = 38766156.

The previous prime is 90454369. The next prime is 90454409. The reversal of 90454378 is 87345409.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 90454378.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3230500 + ... + 3230527.

It is an arithmetic number, because the mean of its divisors is an integer number (19383084).

Almost surely, 2^90454378 is an apocalyptic number.

90454378 is a deficient number, since it is larger than the sum of its proper divisors (64610294).

90454378 is a wasteful number, since it uses less digits than its factorization.

90454378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461036.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 90454378 is about 9510.7506538653. The cubic root of 90454378 is about 448.8933763353.

The spelling of 90454378 in words is "ninety million, four hundred fifty-four thousand, three hundred seventy-eight".