2457218542 has 16 divisors (see below), whose sum is σ = 3761558352. Its totient is φ = 1203442240.

The previous prime is 2457218537. The next prime is 2457218557. The reversal of 2457218542 is 2458127542.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2457218495 and 2457218504.

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, 46617 + ... + 84187.

It is an arithmetic number, because the mean of its divisors is an integer number (235097397).

Almost surely, 2^2457218542 is an apocalyptic number.

2457218542 is a deficient number, since it is larger than the sum of its proper divisors (1304339810).

2457218542 is a wasteful number, since it uses less digits than its factorization.

2457218542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38243.

The product of its digits is 179200, while the sum is 40.

The square root of 2457218542 is about 49570.3393371480. The cubic root of 2457218542 is about 1349.4224400937.

The spelling of 2457218542 in words is "two billion, four hundred fifty-seven million, two hundred eighteen thousand, five hundred forty-two".