1043421672 has 16 divisors (see below), whose sum is σ = 2608554240. Its totient is φ = 347807216.

The previous prime is 1043421629. The next prime is 1043421677. The reversal of 1043421672 is 2761243401.

It is not an unprimeable number, because it can be changed into a prime (1043421677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21737928 + ... + 21737975.

It is an arithmetic number, because the mean of its divisors is an integer number (163034640).

Almost surely, 2^1043421672 is an apocalyptic number.

1043421672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1043421672 is an abundant number, since it is smaller than the sum of its proper divisors (1565132568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1043421672 is a wasteful number, since it uses less digits than its factorization.

1043421672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43475912 (or 43475908 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 1043421672 is about 32302.0382019463. The cubic root of 1043421672 is about 1014.2693090138.

The spelling of 1043421672 in words is "one billion, forty-three million, four hundred twenty-one thousand, six hundred seventy-two".