94905990 has 48 divisors (see below), whose sum is σ = 248092416. Its totient is φ = 25171200.

The previous prime is 94905989. The next prime is 94905991. The reversal of 94905990 is 9950949.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (94905989) and next prime (94905991).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94905991) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 14430 + ... + 19950.

It is an arithmetic number, because the mean of its divisors is an integer number (5168592).

Almost surely, 2^94905990 is an apocalyptic number.

94905990 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 94905990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124046208).

94905990 is an abundant number, since it is smaller than the sum of its proper divisors (153186426).

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

94905990 is a wasteful number, since it uses less digits than its factorization.

94905990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5725 (or 5722 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 94905990 is about 9741.9705398857. The cubic root of 94905990 is about 456.1397021174.

The spelling of 94905990 in words is "ninety-four million, nine hundred five thousand, nine hundred ninety".