20039454 has 32 divisors (see below), whose sum is σ = 45972480. Its totient is φ = 6463800.

The previous prime is 20039443. The next prime is 20039473. The reversal of 20039454 is 45493002.

20039454 is a `hidden beast` number, since 200 + 3 + 9 + 454 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4312 + ... + 7659.

It is an arithmetic number, because the mean of its divisors is an integer number (1436640).

Almost surely, 2^20039454 is an apocalyptic number.

20039454 is an abundant number, since it is smaller than the sum of its proper divisors (25933026).

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

20039454 is a wasteful number, since it uses less digits than its factorization.

20039454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12013 (or 12007 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20039454 is about 4476.5448730019. The cubic root of 20039454 is about 271.6201354726.

The spelling of 20039454 in words is "twenty million, thirty-nine thousand, four hundred fifty-four".