28629500 has 24 divisors (see below), whose sum is σ = 62527920. Its totient is φ = 11451600.

The previous prime is 28629499. The next prime is 28629539. The reversal of 28629500 is 592682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28130 + ... + 29129.

It is an arithmetic number, because the mean of its divisors is an integer number (2605330).

Almost surely, 2^28629500 is an apocalyptic number.

28629500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28629500 is an abundant number, since it is smaller than the sum of its proper divisors (33898420).

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

28629500 is a wasteful number, since it uses less digits than its factorization.

28629500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57278 (or 57266 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 28629500 is about 5350.6541656138. The cubic root of 28629500 is about 305.9176875732.

The spelling of 28629500 in words is "twenty-eight million, six hundred twenty-nine thousand, five hundred".