28741700 has 36 divisors (see below), whose sum is σ = 67170180. Its totient is φ = 10611840.

The previous prime is 28741649. The next prime is 28741729. The reversal of 28741700 is 714782.

It can be written as a sum of positive squares in 6 ways, for example, as 7929856 + 20811844 = 2816^2 + 4562^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9755 + ... + 12354.

Almost surely, 2^28741700 is an apocalyptic number.

28741700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28741700 is an abundant number, since it is smaller than the sum of its proper divisors (38428480).

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

28741700 is a wasteful number, since it uses less digits than its factorization.

28741700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22136 (or 22129 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 28741700 is about 5361.1286125218. The cubic root of 28741700 is about 306.3168006440.

The spelling of 28741700 in words is "twenty-eight million, seven hundred forty-one thousand, seven hundred".