340204942 has 24 divisors (see below), whose sum is σ = 647590680. Its totient is φ = 132546960.

The previous prime is 340204939. The next prime is 340204979. The reversal of 340204942 is 249402043.

It is a super-2 number, since 2×340204942² = 231478805122446728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340204942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156717 + ... + 158872.

It is an arithmetic number, because the mean of its divisors is an integer number (26982945).

Almost surely, 2^340204942 is an apocalyptic number.

340204942 is a deficient number, since it is larger than the sum of its proper divisors (307385738).

340204942 is a wasteful number, since it uses less digits than its factorization.

340204942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315616 (or 315609 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 340204942 is about 18444.6453476341. The cubic root of 340204942 is about 698.0934117450.

Adding to 340204942 its reverse (249402043), we get a palindrome (589606985).

The spelling of 340204942 in words is "three hundred forty million, two hundred four thousand, nine hundred forty-two".