421562073 has 16 divisors (see below), whose sum is σ = 598181760. Its totient is φ = 263160576.

The previous prime is 421562051. The next prime is 421562093. The reversal of 421562073 is 370265124.

It is not a de Polignac number, because 421562073 - 2⁸ = 421561817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421562073.

It is not an unprimeable number, because it can be changed into a prime (421562093) 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, 10933 + ... + 31026.

It is an arithmetic number, because the mean of its divisors is an integer number (37386360).

Almost surely, 2^421562073 is an apocalyptic number.

It is an amenable number.

421562073 is a deficient number, since it is larger than the sum of its proper divisors (176619687).

421562073 is a wasteful number, since it uses less digits than its factorization.

421562073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42176.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 421562073 is about 20531.9768410156. The cubic root of 421562073 is about 749.8145159091.

The spelling of 421562073 in words is "four hundred twenty-one million, five hundred sixty-two thousand, seventy-three".