28632474 has 32 divisors (see below), whose sum is σ = 68523840. Its totient is φ = 8809776.

The previous prime is 28632467. The next prime is 28632481. The reversal of 28632474 is 47423682.

It is an interprime number because it is at equal distance from previous prime (28632467) and next prime (28632481).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19692 + ... + 21095.

It is an arithmetic number, because the mean of its divisors is an integer number (2141370).

Almost surely, 2^28632474 is an apocalyptic number.

28632474 is an abundant number, since it is smaller than the sum of its proper divisors (39891366).

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

28632474 is a wasteful number, since it uses less digits than its factorization.

28632474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40811 (or 40805 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 28632474 is about 5350.9320683410. The cubic root of 28632474 is about 305.9282800006.

The spelling of 28632474 in words is "twenty-eight million, six hundred thirty-two thousand, four hundred seventy-four".