2146406949 has 12 divisors (see below), whose sum is σ = 3175984812. Its totient is φ = 1396036800.

The previous prime is 2146406929. The next prime is 2146406959. The reversal of 2146406949 is 9496046412.

It can be written as a sum of positive squares in 2 ways, for example, as 696168225 + 1450238724 = 26385^2 + 38082^2 .

It is not a de Polignac number, because 2146406949 - 2⁵ = 2146406917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146406929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2908042 + ... + 2908779.

It is an arithmetic number, because the mean of its divisors is an integer number (264665401).

Almost surely, 2^2146406949 is an apocalyptic number.

It is an amenable number.

2146406949 is a deficient number, since it is larger than the sum of its proper divisors (1029577863).

2146406949 is a wasteful number, since it uses less digits than its factorization.

2146406949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816868 (or 5816865 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 2146406949 is about 46329.3314111050. The cubic root of 2146406949 is about 1289.9435003198.

The spelling of 2146406949 in words is "two billion, one hundred forty-six million, four hundred six thousand, nine hundred forty-nine".