1240140102 has 32 divisors (see below), whose sum is σ = 2518283520. Its totient is φ = 407060640.

The previous prime is 1240140067. The next prime is 1240140107. The reversal of 1240140102 is 2010410421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240140107) 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, 545424 + ... + 547692.

It is an arithmetic number, because the mean of its divisors is an integer number (78696360).

Almost surely, 2^1240140102 is an apocalyptic number.

1240140102 is an abundant number, since it is smaller than the sum of its proper divisors (1278143418).

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

1240140102 is a wasteful number, since it uses less digits than its factorization.

1240140102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628.

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

The square root of 1240140102 is about 35215.6229818528. The cubic root of 1240140102 is about 1074.3775309631.

Adding to 1240140102 its reverse (2010410421), we get a palindrome (3250550523).

The spelling of 1240140102 in words is "one billion, two hundred forty million, one hundred forty thousand, one hundred two".