1022043400 has 96 divisors (see below), whose sum is σ = 2875530240. Its totient is φ = 329794560.

The previous prime is 1022043329. The next prime is 1022043409. The reversal of 1022043400 is 43402201.

It is a super-2 number, since 2×1022043400² = 2089145422967120000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1022043409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2329 + ... + 45271.

It is an arithmetic number, because the mean of its divisors is an integer number (29953440).

Almost surely, 2^1022043400 is an apocalyptic number.

1022043400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022043400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1437765120).

1022043400 is an abundant number, since it is smaller than the sum of its proper divisors (1853486840).

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

1022043400 is a wasteful number, since it uses less digits than its factorization.

1022043400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42983 (or 42974 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1022043400 is about 31969.4135072885. The cubic root of 1022043400 is about 1007.2944614547.

Adding to 1022043400 its reverse (43402201), we get a palindrome (1065445601).

The spelling of 1022043400 in words is "one billion, twenty-two million, forty-three thousand, four hundred".