2420521542 has 48 divisors (see below), whose sum is σ = 5470330320. Its totient is φ = 802148832.

The previous prime is 2420521531. The next prime is 2420521553. The reversal of 2420521542 is 2451250242.

It is an interprime number because it is at equal distance from previous prime (2420521531) and next prime (2420521553).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 69684 + ... + 98472.

It is an arithmetic number, because the mean of its divisors is an integer number (113965215).

Almost surely, 2^2420521542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2420521542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2735165160).

2420521542 is an abundant number, since it is smaller than the sum of its proper divisors (3049808778).

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

2420521542 is a wasteful number, since it uses less digits than its factorization.

2420521542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28979 (or 28967 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2420521542 is about 49198.7961438082. The cubic root of 2420521542 is about 1342.6711295224.

Adding to 2420521542 its reverse (2451250242), we get a palindrome (4871771784).

The spelling of 2420521542 in words is "two billion, four hundred twenty million, five hundred twenty-one thousand, five hundred forty-two".