340531400 has 48 divisors (see below), whose sum is σ = 863717040. Its totient is φ = 123828800.

The previous prime is 340531393. The next prime is 340531441. The reversal of 340531400 is 4135043.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 75194 + ... + 79593.

It is an arithmetic number, because the mean of its divisors is an integer number (17994105).

Almost surely, 2^340531400 is an apocalyptic number.

It is an amenable number.

340531400 is an abundant number, since it is smaller than the sum of its proper divisors (523185640).

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

340531400 is a wasteful number, since it uses less digits than its factorization.

340531400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154814 (or 154805 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 340531400 is about 18453.4928943005. The cubic root of 340531400 is about 698.3166353506.

Adding to 340531400 its reverse (4135043), we get a palindrome (344666443).

It can be divided in two parts, 34053 and 1400, that added together give a palindrome (35453).

The spelling of 340531400 in words is "three hundred forty million, five hundred thirty-one thousand, four hundred".