20274450 has 48 divisors (see below), whose sum is σ = 57466560. Its totient is φ = 4633920.

The previous prime is 20274439. The next prime is 20274469. The reversal of 20274450 is 5447202.

It is a super-2 number, since 2×20274450² = 822106645605000, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20274450.

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, 8605 + ... + 10704.

It is an arithmetic number, because the mean of its divisors is an integer number (1197220).

Almost surely, 2^20274450 is an apocalyptic number.

20274450 is an abundant number, since it is smaller than the sum of its proper divisors (37192110).

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

20274450 is a wasteful number, since it uses less digits than its factorization.

20274450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19331 (or 19326 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 20274450 is about 4502.7158471305. The cubic root of 20274450 is about 272.6777450466.

The spelling of 20274450 in words is "twenty million, two hundred seventy-four thousand, four hundred fifty".