321053642 has 32 divisors (see below), whose sum is σ = 618492672. Its totient is φ = 121486464.

The previous prime is 321053641. The next prime is 321053647. The reversal of 321053642 is 246350123.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (321053641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34163 + ... + 42534.

It is an arithmetic number, because the mean of its divisors is an integer number (19327896).

Almost surely, 2^321053642 is an apocalyptic number.

321053642 is a deficient number, since it is larger than the sum of its proper divisors (297439030).

321053642 is a wasteful number, since it uses less digits than its factorization.

321053642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76742.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 321053642 is about 17917.9698068727. The cubic root of 321053642 is about 684.7402656034.

The spelling of 321053642 in words is "three hundred twenty-one million, fifty-three thousand, six hundred forty-two".