421203044 has 6 divisors (see below), whose sum is σ = 737105334. Its totient is φ = 210601520.

The previous prime is 421203043. The next prime is 421203061. The reversal of 421203044 is 440302124.

It can be written as a sum of positive squares in only one way, i.e., 264452644 + 156750400 = 16262^2 + 12520^2 .

It is not an unprimeable number, because it can be changed into a prime (421203043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52650377 + ... + 52650384.

It is an arithmetic number, because the mean of its divisors is an integer number (122850889).

Almost surely, 2^421203044 is an apocalyptic number.

It is an amenable number.

421203044 is a deficient number, since it is larger than the sum of its proper divisors (315902290).

421203044 is a wasteful number, since it uses less digits than its factorization.

421203044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105300765 (or 105300763 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 421203044 is about 20523.2318117786. The cubic root of 421203044 is about 749.6015922510.

Adding to 421203044 its reverse (440302124), we get a palindrome (861505168).

The spelling of 421203044 in words is "four hundred twenty-one million, two hundred three thousand, forty-four".