1001421400 has 48 divisors (see below), whose sum is σ = 2660923440. Its totient is φ = 343344000.

The previous prime is 1001421371. The next prime is 1001421419. The reversal of 1001421400 is 41241001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 356251 + ... + 359050.

It is an arithmetic number, because the mean of its divisors is an integer number (55435905).

Almost surely, 2^1001421400 is an apocalyptic number.

1001421400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001421400 is an abundant number, since it is smaller than the sum of its proper divisors (1659502040).

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

1001421400 is a wasteful number, since it uses less digits than its factorization.

1001421400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715324 (or 715315 counting only the distinct ones).

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

The square root of 1001421400 is about 31645.2429284403. The cubic root of 1001421400 is about 1000.4735756907.

Adding to 1001421400 its reverse (41241001), we get a palindrome (1042662401).

The spelling of 1001421400 in words is "one billion, one million, four hundred twenty-one thousand, four hundred".