1072263644 has 12 divisors (see below), whose sum is σ = 1986841584. Its totient is φ = 504594624.

The previous prime is 1072263641. The next prime is 1072263649. The reversal of 1072263644 is 4463622701.

It is a super-3 number, since 3×1072263644³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072263641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7884224 + ... + 7884359.

It is an arithmetic number, because the mean of its divisors is an integer number (165570132).

Almost surely, 2^1072263644 is an apocalyptic number.

It is an amenable number.

1072263644 is a deficient number, since it is larger than the sum of its proper divisors (914577940).

1072263644 is a wasteful number, since it uses less digits than its factorization.

1072263644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15768604 (or 15768602 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 1072263644 is about 32745.4369950990. The cubic root of 1072263644 is about 1023.5298834363.

The spelling of 1072263644 in words is "one billion, seventy-two million, two hundred sixty-three thousand, six hundred forty-four".