1010021454 has 64 divisors (see below), whose sum is σ = 2500545600. Its totient is φ = 300053376.

The previous prime is 1010021443. The next prime is 1010021461. The reversal of 1010021454 is 4541200101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4449 + ... + 45164.

It is an arithmetic number, because the mean of its divisors is an integer number (39071025).

Almost surely, 2^1010021454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010021454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250272800).

1010021454 is an abundant number, since it is smaller than the sum of its proper divisors (1490524146).

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

1010021454 is a wasteful number, since it uses less digits than its factorization.

1010021454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49666 (or 49660 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1010021454 is about 31780.8346964015. The cubic root of 1010021454 is about 1003.3293875434.

Adding to 1010021454 its reverse (4541200101), we get a palindrome (5551221555).

The spelling of 1010021454 in words is "one billion, ten million, twenty-one thousand, four hundred fifty-four".