340404012 has 48 divisors (see below), whose sum is σ = 950419680. Its totient is φ = 104739264.

The previous prime is 340404011. The next prime is 340404047. The reversal of 340404012 is 210404043.

It is a super-2 number, since 2×340404012² = 231749782771392288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (340404011) 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, 119823 + ... + 122630.

It is an arithmetic number, because the mean of its divisors is an integer number (19800410).

Almost surely, 2^340404012 is an apocalyptic number.

It is an amenable number.

340404012 is an abundant number, since it is smaller than the sum of its proper divisors (610015668).

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

340404012 is a wasteful number, since it uses less digits than its factorization.

340404012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242479 (or 242471 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 340404012 is about 18450.0409755643. The cubic root of 340404012 is about 698.2295476847.

Adding to 340404012 its reverse (210404043), we get a palindrome (550808055).

The spelling of 340404012 in words is "three hundred forty million, four hundred four thousand, twelve".