20248770 has 32 divisors (see below), whose sum is σ = 49076352. Its totient is φ = 5346432.

The previous prime is 20248733. The next prime is 20248771. The reversal of 20248770 is 7784202.

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

It is not an unprimeable number, because it can be changed into a prime (20248771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187 + ... + 6366.

It is an arithmetic number, because the mean of its divisors is an integer number (1533636).

Almost surely, 2^20248770 is an apocalyptic number.

20248770 is an abundant number, since it is smaller than the sum of its proper divisors (28827582).

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

20248770 is a wasteful number, since it uses less digits than its factorization.

20248770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6666.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 20248770 is about 4499.8633312580. The cubic root of 20248770 is about 272.5625701505.

The spelling of 20248770 in words is "twenty million, two hundred forty-eight thousand, seven hundred seventy".