138426000 has 80 divisors (see below), whose sum is σ = 446304768. Its totient is φ = 36912000.

The previous prime is 138425941. The next prime is 138426011. The reversal of 138426000 is 624831.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5536 + ... + 17535.

Almost surely, 2^138426000 is an apocalyptic number.

138426000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138426000 is an abundant number, since it is smaller than the sum of its proper divisors (307878768).

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

138426000 is a wasteful number, since it uses less digits than its factorization.

138426000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23097 (or 23081 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 138426000 is about 11765.4579171403. The cubic root of 138426000 is about 517.2961226350.

The spelling of 138426000 in words is "one hundred thirty-eight million, four hundred twenty-six thousand".