1045451940 has 48 divisors (see below), whose sum is σ = 3152442048. Its totient is φ = 257341824.

The previous prime is 1045451933. The next prime is 1045451947. The reversal of 1045451940 is 491545401.

It is an interprime number because it is at equal distance from previous prime (1045451933) and next prime (1045451947).

It is not an unprimeable number, because it can be changed into a prime (1045451947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669382 + ... + 670941.

It is an arithmetic number, because the mean of its divisors is an integer number (65675876).

Almost surely, 2^1045451940 is an apocalyptic number.

1045451940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045451940 is an abundant number, since it is smaller than the sum of its proper divisors (2106990108).

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

1045451940 is a wasteful number, since it uses less digits than its factorization.

1045451940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340348 (or 1340346 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 1045451940 is about 32333.4492437785. The cubic root of 1045451940 is about 1014.9267307801.

The spelling of 1045451940 in words is "one billion, forty-five million, four hundred fifty-one thousand, nine hundred forty".