2542196397 has 16 divisors (see below), whose sum is σ = 3651448640. Its totient is φ = 1563950592.

The previous prime is 2542196389. The next prime is 2542196413. The reversal of 2542196397 is 7936912452.

It is not a de Polignac number, because 2542196397 - 2³ = 2542196389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542196387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153138 + ... + 168924.

It is an arithmetic number, because the mean of its divisors is an integer number (228215540).

Almost surely, 2^2542196397 is an apocalyptic number.

It is an amenable number.

2542196397 is a deficient number, since it is larger than the sum of its proper divisors (1109252243).

2542196397 is a wasteful number, since it uses less digits than its factorization.

2542196397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19932.

The product of its digits is 816480, while the sum is 48.

The square root of 2542196397 is about 50420.1983038544. The cubic root of 2542196397 is about 1364.8021551734.

The spelling of 2542196397 in words is "two billion, five hundred forty-two million, one hundred ninety-six thousand, three hundred ninety-seven".