2081439402 has 32 divisors (see below), whose sum is σ = 4776112512. Its totient is φ = 592379904.

The previous prime is 2081439401. The next prime is 2081439419. The reversal of 2081439402 is 2049341802.

It is not an unprimeable number, because it can be changed into a prime (2081439401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85623 + ... + 107210.

It is an arithmetic number, because the mean of its divisors is an integer number (149253516).

Almost surely, 2^2081439402 is an apocalyptic number.

2081439402 is an abundant number, since it is smaller than the sum of its proper divisors (2694673110).

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

2081439402 is a wasteful number, since it uses less digits than its factorization.

2081439402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193102.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2081439402 is about 45622.7947631444. The cubic root of 2081439402 is about 1276.7952466653.

The spelling of 2081439402 in words is "two billion, eighty-one million, four hundred thirty-nine thousand, four hundred two".