1028629950 has 24 divisors (see below), whose sum is σ = 2551002648. Its totient is φ = 274301280.

The previous prime is 1028629939. The next prime is 1028629957. The reversal of 1028629950 is 599268201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028629957) 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, 3428617 + ... + 3428916.

It is an arithmetic number, because the mean of its divisors is an integer number (106291777).

Almost surely, 2^1028629950 is an apocalyptic number.

1028629950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1028629950 is an abundant number, since it is smaller than the sum of its proper divisors (1522372698).

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

1028629950 is a wasteful number, since it uses less digits than its factorization.

1028629950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857548 (or 6857543 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1028629950 is about 32072.2613795785. The cubic root of 1028629950 is about 1009.4536632870.

The spelling of 1028629950 in words is "one billion, twenty-eight million, six hundred twenty-nine thousand, nine hundred fifty".