90440414023 has 4 divisors (see below), whose sum is σ = 90562796920. Its totient is φ = 90318031128.

The previous prime is 90440413919. The next prime is 90440414107. The reversal of 90440414023 is 32041404409.

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

It is a cyclic number.

It is not a de Polignac number, because 90440414023 - 2¹³ = 90440405831 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 (90440414123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61190340 + ... + 61191817.

It is an arithmetic number, because the mean of its divisors is an integer number (22640699230).

Almost surely, 2^90440414023 is an apocalyptic number.

90440414023 is a deficient number, since it is larger than the sum of its proper divisors (122382897).

90440414023 is a wasteful number, since it uses less digits than its factorization.

90440414023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122382896.

The product of its (nonzero) digits is 13824, while the sum is 31.

It can be divided in two parts, 9044041 and 4023, that added together give a square (9048064 = 3008²).

The spelling of 90440414023 in words is "ninety billion, four hundred forty million, four hundred fourteen thousand, twenty-three".