84045402 has 48 divisors (see below), whose sum is σ = 214835712. Its totient is φ = 23237280.

The previous prime is 84045337. The next prime is 84045413. The reversal of 84045402 is 20454048.

84045402 = 1719² + 1720² + ... + 1746².

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6853 + ... + 14664.

It is an arithmetic number, because the mean of its divisors is an integer number (4475744).

Almost surely, 2^84045402 is an apocalyptic number.

84045402 is an abundant number, since it is smaller than the sum of its proper divisors (130790310).

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

84045402 is a wasteful number, since it uses less digits than its factorization.

84045402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21563 (or 21560 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 84045402 is about 9167.6279374765. The cubic root of 84045402 is about 438.0308041136.

The spelling of 84045402 in words is "eighty-four million, forty-five thousand, four hundred two".