1042363621 has 16 divisors (see below), whose sum is σ = 1140678000. Its totient is φ = 946764288.

The previous prime is 1042363613. The next prime is 1042363643. The reversal of 1042363621 is 1263632401.

1042363621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 119115396 + 923248225 = 10914^2 + 30385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042363621 - 2³ = 1042363613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042363621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042363661) 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, 208665 + ... + 213601.

It is an arithmetic number, because the mean of its divisors is an integer number (71292375).

Almost surely, 2^1042363621 is an apocalyptic number.

It is an amenable number.

1042363621 is a deficient number, since it is larger than the sum of its proper divisors (98314379).

1042363621 is a wasteful number, since it uses less digits than its factorization.

1042363621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1042363621 is about 32285.6565830711. The cubic root of 1042363621 is about 1013.9263631012.

The spelling of 1042363621 in words is "one billion, forty-two million, three hundred sixty-three thousand, six hundred twenty-one".