148979438 has 16 divisors (see below), whose sum is σ = 232740000. Its totient is φ = 71434272.

The previous prime is 148979431. The next prime is 148979443. The reversal of 148979438 is 834979841.

It is a self number, because there is not a number n which added to its sum of digits gives 148979438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148979431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23 + ... + 17261.

It is an arithmetic number, because the mean of its divisors is an integer number (14546250).

Almost surely, 2^148979438 is an apocalyptic number.

148979438 is a deficient number, since it is larger than the sum of its proper divisors (83760562).

148979438 is a wasteful number, since it uses less digits than its factorization.

148979438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17419.

The product of its digits is 1741824, while the sum is 53.

The square root of 148979438 is about 12205.7133343365. The cubic root of 148979438 is about 530.1215314039.

The spelling of 148979438 in words is "one hundred forty-eight million, nine hundred seventy-nine thousand, four hundred thirty-eight".