612021404 has 12 divisors (see below), whose sum is σ = 1093825824. Its totient is φ = 299499744.

The previous prime is 612021383. The next prime is 612021409. The reversal of 612021404 is 404120216.

612021404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612021409) 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, 1627529 + ... + 1627904.

It is an arithmetic number, because the mean of its divisors is an integer number (91152152).

Almost surely, 2^612021404 is an apocalyptic number.

It is an amenable number.

612021404 is a deficient number, since it is larger than the sum of its proper divisors (481804420).

612021404 is a wasteful number, since it uses less digits than its factorization.

612021404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255484 (or 3255482 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 612021404 is about 24739.0663526334. The cubic root of 612021404 is about 849.0283725789.

The spelling of 612021404 in words is "six hundred twelve million, twenty-one thousand, four hundred four".