20054040 has 32 divisors (see below), whose sum is σ = 60162480. Its totient is φ = 5347712.

The previous prime is 20054017. The next prime is 20054093. The reversal of 20054040 is 4045002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83439 + ... + 83678.

Almost surely, 2^20054040 is an apocalyptic number.

20054040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20054040 is an abundant number, since it is smaller than the sum of its proper divisors (40108440).

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

20054040 is a wasteful number, since it uses less digits than its factorization.

20054040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167131 (or 167127 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 20054040 is about 4478.1737349058. The cubic root of 20054040 is about 271.6860203424.

Adding to 20054040 its reverse (4045002), we get a palindrome (24099042).

The spelling of 20054040 in words is "twenty million, fifty-four thousand, forty".