435680820 has 72 divisors (see below), whose sum is σ = 1364213760. Its totient is φ = 112432320.

The previous prime is 435680797. The next prime is 435680821. The reversal of 435680820 is 28086534.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (435680821) 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 23 ways as a sum of consecutive naturals, for example, 33460 + ... + 44619.

Almost surely, 2^435680820 is an apocalyptic number.

It is an amenable number.

435680820 is an abundant number, since it is smaller than the sum of its proper divisors (928532940).

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

435680820 is a wasteful number, since it uses less digits than its factorization.

435680820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78125 (or 78120 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 435680820 is about 20872.9686436788. The cubic root of 435680820 is about 758.0935712929.

The spelling of 435680820 in words is "four hundred thirty-five million, six hundred eighty thousand, eight hundred twenty".