28049070 has 48 divisors (see below), whose sum is σ = 78312528. Its totient is φ = 6410880.

The previous prime is 28049069. The next prime is 28049107. The reversal of 28049070 is 7094082.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 8071 + ... + 11010.

It is an arithmetic number, because the mean of its divisors is an integer number (1631511).

Almost surely, 2^28049070 is an apocalyptic number.

28049070 is an abundant number, since it is smaller than the sum of its proper divisors (50263458).

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

28049070 is a wasteful number, since it uses less digits than its factorization.

28049070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19105 (or 19098 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 28049070 is about 5296.1372716349. The cubic root of 28049070 is about 303.8361810703.

The spelling of 28049070 in words is "twenty-eight million, forty-nine thousand, seventy".