1051404672 has 128 divisors (see below), whose sum is σ = 2996352000. Its totient is φ = 325638144.

The previous prime is 1051404671. The next prime is 1051404701. The reversal of 1051404672 is 2764041501.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1051404672² = 2210903568606855168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051404671) 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, 385329 + ... + 388047.

It is an arithmetic number, because the mean of its divisors is an integer number (23409000).

Almost surely, 2^1051404672 is an apocalyptic number.

1051404672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1051404672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498176000).

1051404672 is an abundant number, since it is smaller than the sum of its proper divisors (1944947328).

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

1051404672 is a wasteful number, since it uses less digits than its factorization.

1051404672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808 (or 2796 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 1051404672 is about 32425.3708074403. The cubic root of 1051404672 is about 1016.8493940605.

The spelling of 1051404672 in words is "one billion, fifty-one million, four hundred four thousand, six hundred seventy-two".