146673378 has 12 divisors (see below), whose sum is σ = 317792358. Its totient is φ = 48891120.

The previous prime is 146673361. The next prime is 146673383. The reversal of 146673378 is 873376641.

146673378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 89927289 + 56746089 = 9483^2 + 7533^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4074243 + ... + 4074278.

Almost surely, 2^146673378 is an apocalyptic number.

146673378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

146673378 is an abundant number, since it is smaller than the sum of its proper divisors (171118980).

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

146673378 is a wasteful number, since it uses less digits than its factorization.

146673378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8148529 (or 8148526 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 146673378 is about 12110.8784982758. The cubic root of 146673378 is about 527.3720366740.

The spelling of 146673378 in words is "one hundred forty-six million, six hundred seventy-three thousand, three hundred seventy-eight".