94001220 has 36 divisors (see below), whose sum is σ = 285137580. Its totient is φ = 25066944.

The previous prime is 94001213. The next prime is 94001221. The reversal of 94001220 is 2210049.

It can be written as a sum of positive squares in 2 ways, for example, as 51151104 + 42850116 = 7152^2 + 6546^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×94001220² = 17672458722976800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 94001193 and 94001202.

It is not an unprimeable number, because it can be changed into a prime (94001221) 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 11 ways as a sum of consecutive naturals, for example, 260935 + ... + 261294.

Almost surely, 2^94001220 is an apocalyptic number.

94001220 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

94001220 is an abundant number, since it is smaller than the sum of its proper divisors (191136360).

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

94001220 is a wasteful number, since it uses less digits than its factorization.

94001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522244 (or 522239 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 94001220 is about 9695.4226313245. The cubic root of 94001220 is about 454.6855614400.

Adding to 94001220 its reverse (2210049), we get a palindrome (96211269).

The spelling of 94001220 in words is "ninety-four million, one thousand, two hundred twenty".