1050423440 has 40 divisors (see below), whose sum is σ = 2664258048. Its totient is φ = 381971840.

The previous prime is 1050423431. The next prime is 1050423457. The reversal of 1050423440 is 443240501.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1050423440² = 2206778806602867200, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 595952 + ... + 597711.

Almost surely, 2^1050423440 is an apocalyptic number.

1050423440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1050423440 is an abundant number, since it is smaller than the sum of its proper divisors (1613834608).

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

1050423440 is a wasteful number, since it uses less digits than its factorization.

1050423440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193687 (or 1193681 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1050423440 is about 32410.2366544893. The cubic root of 1050423440 is about 1016.5329679361.

Adding to 1050423440 its reverse (443240501), we get a palindrome (1493663941).

The spelling of 1050423440 in words is "one billion, fifty million, four hundred twenty-three thousand, four hundred forty".