82229402 has 4 divisors (see below), whose sum is σ = 123344106. Its totient is φ = 41114700.

The previous prime is 82229383. The next prime is 82229423. The reversal of 82229402 is 20492228.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 75359761 + 6869641 = 8681^2 + 2621^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20557349 + ... + 20557352.

Almost surely, 2^82229402 is an apocalyptic number.

82229402 is a deficient number, since it is larger than the sum of its proper divisors (41114704).

82229402 is a wasteful number, since it uses less digits than its factorization.

82229402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41114703.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 82229402 is about 9068.0428980018. The cubic root of 82229402 is about 434.8529066237.

The spelling of 82229402 in words is "eighty-two million, two hundred twenty-nine thousand, four hundred two".