1011400044 has 24 divisors (see below), whose sum is σ = 2363235840. Its totient is φ = 336661584.

The previous prime is 1011399971. The next prime is 1011400051. The reversal of 1011400044 is 4400041101.

It is a junction number, because it is equal to n+sod(n) for n = 1011399996 and 1011400032.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49984 + ... + 67239.

It is an arithmetic number, because the mean of its divisors is an integer number (98468160).

Almost surely, 2^1011400044 is an apocalyptic number.

It is an amenable number.

1011400044 is an abundant number, since it is smaller than the sum of its proper divisors (1351835796).

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

1011400044 is a wasteful number, since it uses less digits than its factorization.

1011400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117949 (or 117947 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1011400044 is about 31802.5163155370. The cubic root of 1011400044 is about 1003.7856653203.

Adding to 1011400044 its reverse (4400041101), we get a palindrome (5411441145).

The spelling of 1011400044 in words is "one billion, eleven million, four hundred thousand, forty-four".