1202424140 has 24 divisors (see below), whose sum is σ = 2526037920. Its totient is φ = 480789248.

The previous prime is 1202424133. The next prime is 1202424149. The reversal of 1202424140 is 414242021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1202424149) 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, 52049 + ... + 71511.

It is an arithmetic number, because the mean of its divisors is an integer number (105251580).

Almost surely, 2^1202424140 is an apocalyptic number.

1202424140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202424140 is an abundant number, since it is smaller than the sum of its proper divisors (1323613780).

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

1202424140 is a wasteful number, since it uses less digits than its factorization.

1202424140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22561 (or 22559 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1202424140 is about 34675.9879455510. The cubic root of 1202424140 is about 1063.3736526434.

Adding to 1202424140 its reverse (414242021), we get a palindrome (1616666161).

The spelling of 1202424140 in words is "one billion, two hundred two million, four hundred twenty-four thousand, one hundred forty".