20067400 has 48 divisors (see below), whose sum is σ = 46955700. Its totient is φ = 7975680.

The previous prime is 20067379. The next prime is 20067407. The reversal of 20067400 is 476002.

It can be written as a sum of positive squares in 6 ways, for example, as 3076516 + 16990884 = 1754^2 + 4122^2 .

It is not an unprimeable number, because it can be changed into a prime (20067407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53614 + ... + 53986.

Almost surely, 2^20067400 is an apocalyptic number.

20067400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20067400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23477850).

20067400 is an abundant number, since it is smaller than the sum of its proper divisors (26888300).

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

20067400 is a wasteful number, since it uses less digits than its factorization.

20067400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20067400 is about 4479.6651660587. The cubic root of 20067400 is about 271.7463393519.

It can be divided in two parts, 200 and 67400, that added together give a square (67600 = 260²).

The spelling of 20067400 in words is "twenty million, sixty-seven thousand, four hundred".