1005400455 has 16 divisors (see below), whose sum is σ = 1615670880. Its totient is φ = 533870208.

The previous prime is 1005400421. The next prime is 1005400469. The reversal of 1005400455 is 5540045001.

It is not a de Polignac number, because 1005400455 - 2⁷ = 1005400327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142912 + ... + 149781.

It is an arithmetic number, because the mean of its divisors is an integer number (100979430).

Almost surely, 2^1005400455 is an apocalyptic number.

1005400455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1005400455 is a deficient number, since it is larger than the sum of its proper divisors (610270425).

1005400455 is a wasteful number, since it uses less digits than its factorization.

1005400455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292930.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 1005400455 is about 31708.0503184917. The cubic root of 1005400455 is about 1001.7969208082.

Adding to 1005400455 its reverse (5540045001), we get a palindrome (6545445456).

The spelling of 1005400455 in words is "one billion, five million, four hundred thousand, four hundred fifty-five".