1002899955 has 16 divisors (see below), whose sum is σ = 1699030944. Its totient is φ = 503416320.

The previous prime is 1002899951. The next prime is 1002899969. The reversal of 1002899955 is 5599982001.

It is a happy number.

It is not a de Polignac number, because 1002899955 - 2² = 1002899951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002899951) 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, 1966216 + ... + 1966725.

It is an arithmetic number, because the mean of its divisors is an integer number (106189434).

Almost surely, 2^1002899955 is an apocalyptic number.

1002899955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1002899955 is a deficient number, since it is larger than the sum of its proper divisors (696130989).

1002899955 is a wasteful number, since it uses less digits than its factorization.

1002899955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932966.

The product of its (nonzero) digits is 291600, while the sum is 48.

The square root of 1002899955 is about 31668.5957219451. The cubic root of 1002899955 is about 1000.9657187537.

The spelling of 1002899955 in words is "one billion, two million, eight hundred ninety-nine thousand, nine hundred fifty-five".