3240400542 has 16 divisors (see below), whose sum is σ = 6530274432. Its totient is φ = 1071887960.

The previous prime is 3240400523. The next prime is 3240400567. The reversal of 3240400542 is 2450040423.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2060538 + ... + 2062109.

It is an arithmetic number, because the mean of its divisors is an integer number (408142152).

Almost surely, 2^3240400542 is an apocalyptic number.

3240400542 is an abundant number, since it is smaller than the sum of its proper divisors (3289873890).

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

3240400542 is a wasteful number, since it uses less digits than its factorization.

3240400542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122783.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 3240400542 is about 56924.5161771271. The cubic root of 3240400542 is about 1479.7882187226.

Adding to 3240400542 its reverse (2450040423), we get a palindrome (5690440965).

The spelling of 3240400542 in words is "three billion, two hundred forty million, four hundred thousand, five hundred forty-two".