1075245644 has 48 divisors (see below), whose sum is σ = 2235340800. Its totient is φ = 447048000.

The previous prime is 1075245643. The next prime is 1075245667. The reversal of 1075245644 is 4465425701.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 1075245598 and 1075245607.

It is not an unprimeable number, because it can be changed into a prime (1075245643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2069 + ... + 46419.

It is an arithmetic number, because the mean of its divisors is an integer number (46569600).

Almost surely, 2^1075245644 is an apocalyptic number.

It is an amenable number.

1075245644 is an abundant number, since it is smaller than the sum of its proper divisors (1160095156).

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

1075245644 is a wasteful number, since it uses less digits than its factorization.

1075245644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44414 (or 44412 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

The square root of 1075245644 is about 32790.9384434176. The cubic root of 1075245644 is about 1024.4778285000.

The spelling of 1075245644 in words is "one billion, seventy-five million, two hundred forty-five thousand, six hundred forty-four".