1029900 has 36 divisors (see below), whose sum is σ = 2980712. Its totient is φ = 274560.

The previous prime is 1029883. The next prime is 1029907. The reversal of 1029900 is 99201.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1029907) 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, 1417 + ... + 2016.

2^1029900 is an apocalyptic number.

1029900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1029900 is an abundant number, since it is smaller than the sum of its proper divisors (1950812).

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

1029900 is a wasteful number, since it uses less digits than its factorization.

1029900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450 (or 3443 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1029900 is about 1014.8398888495. The cubic root of 1029900 is about 100.9868950091.

The spelling of 1029900 in words is "one million, twenty-nine thousand, nine hundred".