16425738 has 24 divisors (see below), whose sum is σ = 40673568. Its totient is φ = 4693032.

The previous prime is 16425737. The next prime is 16425763. The reversal of 16425738 is 83752461.

16425738 is a `hidden beast` number, since 1 + 642 + 5 + 7 + 3 + 8 = 666.

16425738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16425737) 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, 65056 + ... + 65307.

It is an arithmetic number, because the mean of its divisors is an integer number (1694732).

Almost surely, 2^16425738 is an apocalyptic number.

16425738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16425738 is an abundant number, since it is smaller than the sum of its proper divisors (24247830).

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

16425738 is a wasteful number, since it uses less digits than its factorization.

16425738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130378 (or 130375 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 16425738 is about 4052.8678734940. The cubic root of 16425738 is about 254.1996590813.

The spelling of 16425738 in words is "sixteen million, four hundred twenty-five thousand, seven hundred thirty-eight".