340400554 has 32 divisors (see below), whose sum is σ = 590478336. Its totient is φ = 145770240.

The previous prime is 340400539. The next prime is 340400587. The reversal of 340400554 is 455004043.

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, 25959 + ... + 36805.

It is an arithmetic number, because the mean of its divisors is an integer number (18452448).

Almost surely, 2^340400554 is an apocalyptic number.

340400554 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

340400554 is a deficient number, since it is larger than the sum of its proper divisors (250077782).

340400554 is a wasteful number, since it uses less digits than its factorization.

340400554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10950.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 340400554 is about 18449.9472627973. The cubic root of 340400554 is about 698.2271833511.

Adding to 340400554 its reverse (455004043), we get a palindrome (795404597).

The spelling of 340400554 in words is "three hundred forty million, four hundred thousand, five hundred fifty-four".