82943400 has 48 divisors (see below), whose sum is σ = 257126400. Its totient is φ = 22118080.

The previous prime is 82943363. The next prime is 82943411. The reversal of 82943400 is 434928.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68520 + ... + 69719.

It is an arithmetic number, because the mean of its divisors is an integer number (5356800).

Almost surely, 2^82943400 is an apocalyptic number.

It is an amenable number.

82943400 is an abundant number, since it is smaller than the sum of its proper divisors (174183000).

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

82943400 is a wasteful number, since it uses less digits than its factorization.

82943400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138258 (or 138249 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 82943400 is about 9107.3267208331. The cubic root of 82943400 is about 436.1078907028.

The spelling of 82943400 in words is "eighty-two million, nine hundred forty-three thousand, four hundred".