1142610644 has 24 divisors (see below), whose sum is σ = 2291788800. Its totient is φ = 488282976.

The previous prime is 1142610571. The next prime is 1142610649. The reversal of 1142610644 is 4460162411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142610649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48692 + ... + 68235.

It is an arithmetic number, because the mean of its divisors is an integer number (95491200).

Almost surely, 2^1142610644 is an apocalyptic number.

1142610644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1142610644 is an abundant number, since it is smaller than the sum of its proper divisors (1149178156).

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

1142610644 is a wasteful number, since it uses less digits than its factorization.

1142610644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117287 (or 117285 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1142610644 is about 33802.5242252705. The cubic root of 1142610644 is about 1045.4407438549.

The spelling of 1142610644 in words is "one billion, one hundred forty-two million, six hundred ten thousand, six hundred forty-four".