90442301 has 4 divisors (see below), whose sum is σ = 90507900. Its totient is φ = 90376704.

The previous prime is 90442259. The next prime is 90442307. The reversal of 90442301 is 10324409.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24019801 + 66422500 = 4901^2 + 8150^2 .

It is a cyclic number.

It is not a de Polignac number, because 90442301 - 2⁶ = 90442237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90442307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30686 + ... + 33503.

It is an arithmetic number, because the mean of its divisors is an integer number (22626975).

Almost surely, 2^90442301 is an apocalyptic number.

It is an amenable number.

90442301 is a deficient number, since it is larger than the sum of its proper divisors (65599).

90442301 is a wasteful number, since it uses less digits than its factorization.

90442301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65598.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 90442301 is about 9510.1157195904. The cubic root of 90442301 is about 448.8733974733.

The spelling of 90442301 in words is "ninety million, four hundred forty-two thousand, three hundred one".