344620740 has 48 divisors (see below), whose sum is σ = 968280768. Its totient is φ = 91580544.

The previous prime is 344620739. The next prime is 344620763. The reversal of 344620740 is 47026443.

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 = 344620698 and 344620707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7779 + ... + 27381.

It is an arithmetic number, because the mean of its divisors is an integer number (20172516).

Almost surely, 2^344620740 is an apocalyptic number.

344620740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

344620740 is an abundant number, since it is smaller than the sum of its proper divisors (623660028).

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

344620740 is a wasteful number, since it uses less digits than its factorization.

344620740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19908 (or 19906 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 344620740 is about 18563.9634776628. The cubic root of 344620740 is about 701.1008121853.

The spelling of 344620740 in words is "three hundred forty-four million, six hundred twenty thousand, seven hundred forty".