1022004400 has 30 divisors (see below), whose sum is σ = 2455366532. Its totient is φ = 408801600.

The previous prime is 1022004367. The next prime is 1022004413. The reversal of 1022004400 is 44002201.

1022004400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1277106 + ... + 1277905.

Almost surely, 2^1022004400 is an apocalyptic number.

1022004400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022004400 is an abundant number, since it is smaller than the sum of its proper divisors (1433362132).

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

1022004400 is a wasteful number, since it uses less digits than its factorization.

1022004400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555029 (or 2555018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1022004400 is about 31968.8035434547. The cubic root of 1022004400 is about 1007.2816488925.

Adding to 1022004400 its reverse (44002201), we get a palindrome (1066006601).

The spelling of 1022004400 in words is "one billion, twenty-two million, four thousand, four hundred".