306401256641044 has 36 divisors (see below), whose sum is σ = 568256861640468. Its totient is φ = 144535207161600.

The previous prime is 306401256641033. The next prime is 306401256641119. The reversal of 306401256641044 is 440146652104603.

It can be written as a sum of positive squares in 2 ways, for example, as 228360817238544 + 78040439402500 = 15111612^2 + 8834050^2 .

It is a junction number, because it is equal to n+sod(n) for n = 306401256640985 and 306401256641003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439878627 + ... + 440574634.

Almost surely, 2^{306401256641044} is an apocalyptic number.

It is an amenable number.

306401256641044 is a deficient number, since it is larger than the sum of its proper divisors (261855604999424).

306401256641044 is a wasteful number, since it uses less digits than its factorization.

306401256641044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880453544 (or 880453523 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 306401256641044 in words is "three hundred six trillion, four hundred one billion, two hundred fifty-six million, six hundred forty-one thousand, forty-four".