344278404 has 48 divisors (see below), whose sum is σ = 939556800. Its totient is φ = 108718848.

The previous prime is 344278391. The next prime is 344278409. The reversal of 344278404 is 404872443.

It is a happy number.

344278404 is a `hidden beast` number, since 344 + 278 + 40 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (344278409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81837 + ... + 85940.

It is an arithmetic number, because the mean of its divisors is an integer number (19574100).

Almost surely, 2^344278404 is an apocalyptic number.

It is an amenable number.

344278404 is an abundant number, since it is smaller than the sum of its proper divisors (595278396).

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

344278404 is a wasteful number, since it uses less digits than its factorization.

344278404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167809 (or 167801 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The square root of 344278404 is about 18554.7407419236. The cubic root of 344278404 is about 700.8685843695.

The spelling of 344278404 in words is "three hundred forty-four million, two hundred seventy-eight thousand, four hundred four".