1005902949 has 8 divisors (see below), whose sum is σ = 1346154112. Its totient is φ = 668126880.

The previous prime is 1005902941. The next prime is 1005902969. The reversal of 1005902949 is 9492095001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1005902949 - 2³ = 1005902941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005902941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617824 + ... + 619449.

It is an arithmetic number, because the mean of its divisors is an integer number (168269264).

Almost surely, 2^1005902949 is an apocalyptic number.

It is an amenable number.

1005902949 is a deficient number, since it is larger than the sum of its proper divisors (340251163).

1005902949 is a wasteful number, since it uses less digits than its factorization.

1005902949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237547.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 1005902949 is about 31715.9730892811. The cubic root of 1005902949 is about 1001.9637906684.

The spelling of 1005902949 in words is "one billion, five million, nine hundred two thousand, nine hundred forty-nine".