1045907280 has 120 divisors (see below), whose sum is σ = 3831852960. Its totient is φ = 253551360.

The previous prime is 1045907251. The next prime is 1045907299. The reversal of 1045907280 is 827095401.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58110 + ... + 73949.

It is an arithmetic number, because the mean of its divisors is an integer number (31932108).

Almost surely, 2^1045907280 is an apocalyptic number.

1045907280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045907280 is an abundant number, since it is smaller than the sum of its proper divisors (2785945680).

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

1045907280 is a wasteful number, since it uses less digits than its factorization.

1045907280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132089 (or 132080 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1045907280 is about 32340.4897922094. The cubic root of 1045907280 is about 1015.0740577056.

The spelling of 1045907280 in words is "one billion, forty-five million, nine hundred seven thousand, two hundred eighty".