28761450 has 48 divisors (see below), whose sum is σ = 75530880. Its totient is φ = 7217920.

The previous prime is 28761449. The next prime is 28761517. The reversal of 28761450 is 5416782.

It is a super-2 number, since 2×28761450² = 1654442012205000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3090 + ... + 8189.

It is an arithmetic number, because the mean of its divisors is an integer number (1573560).

Almost surely, 2^28761450 is an apocalyptic number.

28761450 is an abundant number, since it is smaller than the sum of its proper divisors (46769430).

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

28761450 is a wasteful number, since it uses less digits than its factorization.

28761450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11311 (or 11306 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 28761450 is about 5362.9702591008. The cubic root of 28761450 is about 306.3869469428.

The spelling of 28761450 in words is "twenty-eight million, seven hundred sixty-one thousand, four hundred fifty".