344904240 has 40 divisors (see below), whose sum is σ = 1069203888. Its totient is φ = 91974400.

The previous prime is 344904229. The next prime is 344904253. The reversal of 344904240 is 42409443.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 344904198 and 344904207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718311 + ... + 718790.

Almost surely, 2^344904240 is an apocalyptic number.

344904240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

344904240 is an abundant number, since it is smaller than the sum of its proper divisors (724299648).

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

344904240 is a wasteful number, since it uses less digits than its factorization.

344904240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437117 (or 1437111 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 344904240 is about 18571.5976695598. The cubic root of 344904240 is about 701.2930114918.

The spelling of 344904240 in words is "three hundred forty-four million, nine hundred four thousand, two hundred forty".