82437240 has 32 divisors (see below), whose sum is σ = 247312080. Its totient is φ = 21983232.

The previous prime is 82437239. The next prime is 82437241. The reversal of 82437240 is 4273428.

It is an interprime number because it is at equal distance from previous prime (82437239) and next prime (82437241).

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

It is a junction number, because it is equal to n+sod(n) for n = 82437198 and 82437207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82437241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343369 + ... + 343608.

Almost surely, 2^82437240 is an apocalyptic number.

It is an amenable number.

82437240 is an abundant number, since it is smaller than the sum of its proper divisors (164874840).

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

82437240 is a wasteful number, since it uses less digits than its factorization.

82437240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686991 (or 686987 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 82437240 is about 9079.4955807027. The cubic root of 82437240 is about 435.2189675764.

The spelling of 82437240 in words is "eighty-two million, four hundred thirty-seven thousand, two hundred forty".