2540421342 has 48 divisors (see below), whose sum is σ = 5559840000. Its totient is φ = 838298832.

The previous prime is 2540421329. The next prime is 2540421361. The reversal of 2540421342 is 2431240452.

2540421342 is a `hidden beast` number, since 2 + 5 + 404 + 213 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 768409 + ... + 771707.

It is an arithmetic number, because the mean of its divisors is an integer number (115830000).

Almost surely, 2^2540421342 is an apocalyptic number.

2540421342 is an abundant number, since it is smaller than the sum of its proper divisors (3019418658).

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

2540421342 is a wasteful number, since it uses less digits than its factorization.

2540421342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725 (or 3722 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2540421342 is about 50402.5926118885. The cubic root of 2540421342 is about 1364.4844295300.

Adding to 2540421342 its reverse (2431240452), we get a palindrome (4971661794).

The spelling of 2540421342 in words is "two billion, five hundred forty million, four hundred twenty-one thousand, three hundred forty-two".