1004121400 has 48 divisors (see below), whose sum is σ = 2337071400. Its totient is φ = 401220480.

The previous prime is 1004121397. The next prime is 1004121409. The reversal of 1004121400 is 41214001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004121409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240531 + ... + 244669.

Almost surely, 2^1004121400 is an apocalyptic number.

1004121400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004121400 is an abundant number, since it is smaller than the sum of its proper divisors (1332950000).

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

1004121400 is a wasteful number, since it uses less digits than its factorization.

1004121400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368 (or 5359 counting only the distinct ones).

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

The square root of 1004121400 is about 31687.8746526175. The cubic root of 1004121400 is about 1001.3719169831.

Adding to 1004121400 its reverse (41214001), we get a palindrome (1045335401).

The spelling of 1004121400 in words is "one billion, four million, one hundred twenty-one thousand, four hundred".