846639402 has 32 divisors (see below), whose sum is σ = 1987481472. Its totient is φ = 235358784.

The previous prime is 846639359. The next prime is 846639461. The reversal of 846639402 is 204936648.

It is a happy number.

846639402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270853 + ... + 273960.

It is an arithmetic number, because the mean of its divisors is an integer number (62108796).

Almost surely, 2^846639402 is an apocalyptic number.

846639402 is an abundant number, since it is smaller than the sum of its proper divisors (1140842070).

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

846639402 is a wasteful number, since it uses less digits than its factorization.

846639402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544862.

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 846639402 is about 29097.0686152403. The cubic root of 846639402 is about 946.0182009857.

The spelling of 846639402 in words is "eight hundred forty-six million, six hundred thirty-nine thousand, four hundred two".