3212420040 has 64 divisors (see below), whose sum is σ = 10708070400. Its totient is φ = 856645056.

The previous prime is 3212420027. The next prime is 3212420083. The reversal of 3212420040 is 400242123.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3212419995 and 3212420022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1486152 + ... + 1488311.

It is an arithmetic number, because the mean of its divisors is an integer number (167313600).

Almost surely, 2^3212420040 is an apocalyptic number.

3212420040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3212420040 is an abundant number, since it is smaller than the sum of its proper divisors (7495650360).

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

3212420040 is a wasteful number, since it uses less digits than its factorization.

3212420040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974483 (or 2974473 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 3212420040 is about 56678.2148625025. The cubic root of 3212420040 is about 1475.5166306690.

Adding to 3212420040 its reverse (400242123), we get a palindrome (3612662163).

The spelling of 3212420040 in words is "three billion, two hundred twelve million, four hundred twenty thousand, forty".