312402020 has 48 divisors (see below), whose sum is σ = 751379328. Its totient is φ = 106878720.

The previous prime is 312402017. The next prime is 312402023. The reversal of 312402020 is 20204213.

It is an interprime number because it is at equal distance from previous prime (312402017) and next prime (312402023).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 312401986 and 312402004.

It is not an unprimeable number, because it can be changed into a prime (312402023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70799 + ... + 75081.

It is an arithmetic number, because the mean of its divisors is an integer number (15653736).

Almost surely, 2^312402020 is an apocalyptic number.

It is an amenable number.

312402020 is an abundant number, since it is smaller than the sum of its proper divisors (438977308).

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

312402020 is a wasteful number, since it uses less digits than its factorization.

312402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4820 (or 4818 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 312402020 is about 17674.8980195078. The cubic root of 312402020 is about 678.5334744317.

Adding to 312402020 its reverse (20204213), we get a palindrome (332606233).

The spelling of 312402020 in words is "three hundred twelve million, four hundred two thousand, twenty".