91460020 has 12 divisors (see below), whose sum is σ = 192066084. Its totient is φ = 36584000.

The previous prime is 91460009. The next prime is 91460023. The reversal of 91460020 is 2006419.

It can be written as a sum of positive squares in 2 ways, for example, as 36433296 + 55026724 = 6036^2 + 7418^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91459973 and 91460000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91460023) 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, 2286481 + ... + 2286520.

It is an arithmetic number, because the mean of its divisors is an integer number (16005507).

Almost surely, 2^91460020 is an apocalyptic number.

It is an amenable number.

91460020 is an abundant number, since it is smaller than the sum of its proper divisors (100606064).

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

91460020 is a wasteful number, since it uses less digits than its factorization.

91460020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4573010 (or 4573008 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 91460020 is about 9563.4732184495. The cubic root of 91460020 is about 450.5507987997.

Adding to 91460020 its reverse (2006419), we get a palindrome (93466439).

The spelling of 91460020 in words is "ninety-one million, four hundred sixty thousand, twenty".