148209438 has 16 divisors (see below), whose sum is σ = 319220496. Its totient is φ = 45602880.

The previous prime is 148209437. The next prime is 148209461. The reversal of 148209438 is 834902841.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 148209396 and 148209405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148209431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949983 + ... + 950138.

It is an arithmetic number, because the mean of its divisors is an integer number (19951281).

Almost surely, 2^148209438 is an apocalyptic number.

148209438 is an abundant number, since it is smaller than the sum of its proper divisors (171011058).

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

148209438 is a wasteful number, since it uses less digits than its factorization.

148209438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900139.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 148209438 is about 12174.1298662368. The cubic root of 148209438 is about 529.2066426107.

The spelling of 148209438 in words is "one hundred forty-eight million, two hundred nine thousand, four hundred thirty-eight".