2400142020 has 24 divisors (see below), whose sum is σ = 6720397824. Its totient is φ = 640037856.

The previous prime is 2400142013. The next prime is 2400142033. The reversal of 2400142020 is 202410042.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 20001124 + ... + 20001243.

It is an arithmetic number, because the mean of its divisors is an integer number (280016576).

Almost surely, 2^2400142020 is an apocalyptic number.

2400142020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2400142020 is an abundant number, since it is smaller than the sum of its proper divisors (4320255804).

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

2400142020 is a wasteful number, since it uses less digits than its factorization.

2400142020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40002379 (or 40002377 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2400142020 is about 48991.2443197762. The cubic root of 2400142020 is about 1338.8923087733.

Adding to 2400142020 its reverse (202410042), we get a palindrome (2602552062).

The spelling of 2400142020 in words is "two billion, four hundred million, one hundred forty-two thousand, twenty".