43207680 has 176 divisors, whose sum is σ = 144436320. Its totient is φ = 11010048.

The previous prime is 43207673. The next prime is 43207687. The reversal of 43207680 is 8670234.

It is an interprime number because it is at equal distance from previous prime (43207673) and next prime (43207687).

It is a super-2 number, since 2×43207680² = 3733807221964800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43207687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445392 + ... + 445488.

Almost surely, 2^43207680 is an apocalyptic number.

43207680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43207680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72218160).

43207680 is an abundant number, since it is smaller than the sum of its proper divisors (101228640).

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

43207680 is a wasteful number, since it uses less digits than its factorization.

43207680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 43207680 is about 6573.2549014929. The cubic root of 43207680 is about 350.9029203685.

It can be divided in two parts, 4320 and 7680, that multiplied together give a square (33177600 = 5760²).

The spelling of 43207680 in words is "forty-three million, two hundred seven thousand, six hundred eighty".