3240400355 has 16 divisors (see below), whose sum is σ = 4009739328. Its totient is φ = 2512320000.

The previous prime is 3240400349. The next prime is 3240400363. The reversal of 3240400355 is 5530040423.

It is not a de Polignac number, because 3240400355 - 2¹⁶ = 3240334819 is a prime.

It is a Duffinian number.

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, 21386 + ... + 83295.

It is an arithmetic number, because the mean of its divisors is an integer number (250608708).

Almost surely, 2^3240400355 is an apocalyptic number.

3240400355 is a deficient number, since it is larger than the sum of its proper divisors (769338973).

3240400355 is a wasteful number, since it uses less digits than its factorization.

3240400355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104878.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 3240400355 is about 56924.5145346010. The cubic root of 3240400355 is about 1479.7881902569.

Adding to 3240400355 its reverse (5530040423), we get a palindrome (8770440778).

The spelling of 3240400355 in words is "three billion, two hundred forty million, four hundred thousand, three hundred fifty-five".