3431400021 has 12 divisors (see below), whose sum is σ = 5664533472. Its totient is φ = 1960799976.

The previous prime is 3431399977. The next prime is 3431400023. The reversal of 3431400021 is 1200041343.

It is not a de Polignac number, because 3431400021 - 2¹⁷ = 3431268949 is a prime.

It is a super-2 number, since 2×3431400021² = 23549012208237600882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3431399967 and 3431400003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431400023) 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 11 ways as a sum of consecutive naturals, for example, 27233271 + ... + 27233396.

It is an arithmetic number, because the mean of its divisors is an integer number (472044456).

Almost surely, 2^3431400021 is an apocalyptic number.

It is an amenable number.

3431400021 is a deficient number, since it is larger than the sum of its proper divisors (2233133451).

3431400021 is a wasteful number, since it uses less digits than its factorization.

3431400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54466680 (or 54466677 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3431400021 is about 58578.1531033542. The cubic root of 3431400021 is about 1508.3094424455.

Adding to 3431400021 its reverse (1200041343), we get a palindrome (4631441364).

The spelling of 3431400021 in words is "three billion, four hundred thirty-one million, four hundred thousand, twenty-one".