2420501999 has 4 divisors (see below), whose sum is σ = 2421249336. Its totient is φ = 2419754664.

The previous prime is 2420501989. The next prime is 2420502011. The reversal of 2420501999 is 9991050242.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2420501999 - 2⁴ = 2420501983 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 (2420501989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368789 + ... + 375294.

It is an arithmetic number, because the mean of its divisors is an integer number (605312334).

Almost surely, 2^2420501999 is an apocalyptic number.

2420501999 is a deficient number, since it is larger than the sum of its proper divisors (747337).

2420501999 is an equidigital number, since it uses as much as digits as its factorization.

2420501999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747336.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 2420501999 is about 49198.5975308240. The cubic root of 2420501999 is about 1342.6675159909.

The spelling of 2420501999 in words is "two billion, four hundred twenty million, five hundred one thousand, nine hundred ninety-nine".