421463402 has 4 divisors (see below), whose sum is σ = 632195106. Its totient is φ = 210731700.

The previous prime is 421463401. The next prime is 421463407. The reversal of 421463402 is 204364124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 381381841 + 40081561 = 19529^2 + 6331^2 .

It is not an unprimeable number, because it can be changed into a prime (421463401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105365849 + ... + 105365852.

Almost surely, 2^421463402 is an apocalyptic number.

421463402 is a deficient number, since it is larger than the sum of its proper divisors (210731704).

421463402 is a wasteful number, since it uses less digits than its factorization.

421463402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210731703.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 421463402 is about 20529.5738387332. The cubic root of 421463402 is about 749.7560107083.

The spelling of 421463402 in words is "four hundred twenty-one million, four hundred sixty-three thousand, four hundred two".