1406222994 has 48 divisors (see below), whose sum is σ = 3094812576. Its totient is φ = 422452800.

The previous prime is 1406222981. The next prime is 1406223031. The reversal of 1406222994 is 4992226041.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1063854 + ... + 1065174.

It is an arithmetic number, because the mean of its divisors is an integer number (64475262).

Almost surely, 2^1406222994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1406222994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547406288).

1406222994 is an abundant number, since it is smaller than the sum of its proper divisors (1688589582).

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

1406222994 is a wasteful number, since it uses less digits than its factorization.

1406222994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1464 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1406222994 is about 37499.6399182712. The cubic root of 1406222994 is about 1120.3440147524.

The spelling of 1406222994 in words is "one billion, four hundred six million, two hundred twenty-two thousand, nine hundred ninety-four".