1054628421 has 48 divisors (see below), whose sum is σ = 1878428160. Its totient is φ = 519009120.

The previous prime is 1054628389. The next prime is 1054628423. The reversal of 1054628421 is 1248264501.

It is a happy number.

It is not a de Polignac number, because 1054628421 - 2⁵ = 1054628389 is a prime.

It is a super-2 number, since 2×1054628421² = 2224482212761906482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054628423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13560 + ... + 47886.

It is an arithmetic number, because the mean of its divisors is an integer number (39133920).

Almost surely, 2^1054628421 is an apocalyptic number.

1054628421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1054628421 is a deficient number, since it is larger than the sum of its proper divisors (823799739).

1054628421 is a wasteful number, since it uses less digits than its factorization.

1054628421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34374 (or 34367 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 1054628421 is about 32475.0430484703. The cubic root of 1054628421 is about 1017.8875996367.

The spelling of 1054628421 in words is "one billion, fifty-four million, six hundred twenty-eight thousand, four hundred twenty-one".