1045422672 has 160 divisors (see below), whose sum is σ = 3210461184. Its totient is φ = 286848000.

The previous prime is 1045422661. The next prime is 1045422683. The reversal of 1045422672 is 2762245401.

It is an interprime number because it is at equal distance from previous prime (1045422661) and next prime (1045422683).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1739172 + ... + 1739772.

Almost surely, 2^1045422672 is an apocalyptic number.

1045422672 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 1045422672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605230592).

1045422672 is an abundant number, since it is smaller than the sum of its proper divisors (2165038512).

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

1045422672 is a wasteful number, since it uses less digits than its factorization.

1045422672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 1045422672 is about 32332.9966442951. The cubic root of 1045422672 is about 1014.9172595483.

The spelling of 1045422672 in words is "one billion, forty-five million, four hundred twenty-two thousand, six hundred seventy-two".