1001401024 has 28 divisors (see below), whose sum is σ = 2140015024. Its totient is φ = 462184704.

The previous prime is 1001401019. The next prime is 1001401069. The reversal of 1001401024 is 4201041001.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1001400995 and 1001401013.

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 3 ways as a sum of consecutive naturals, for example, 600972 + ... + 602635.

It is an arithmetic number, because the mean of its divisors is an integer number (76429108).

Almost surely, 2^1001401024 is an apocalyptic number.

It is an amenable number.

1001401024 is an abundant number, since it is smaller than the sum of its proper divisors (1138614000).

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

1001401024 is a wasteful number, since it uses less digits than its factorization.

1001401024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203632 (or 1203622 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1001401024 is about 31644.9209826790. The cubic root of 1001401024 is about 1000.4667900731.

Adding to 1001401024 its reverse (4201041001), we get a palindrome (5202442025).

The spelling of 1001401024 in words is "one billion, one million, four hundred one thousand, twenty-four".