1402442120 has 32 divisors (see below), whose sum is σ = 3158642520. Its totient is φ = 560417280.

The previous prime is 1402442113. The next prime is 1402442123. The reversal of 1402442120 is 212442041.

It can be written as a sum of positive squares in 4 ways, for example, as 1363529476 + 38912644 = 36926^2 + 6238^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1402442092 and 1402442101.

It is not an unprimeable number, because it can be changed into a prime (1402442123) 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, 24350 + ... + 58290.

Almost surely, 2^1402442120 is an apocalyptic number.

1402442120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402442120 is an abundant number, since it is smaller than the sum of its proper divisors (1756200400).

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

1402442120 is a wasteful number, since it uses less digits than its factorization.

1402442120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34985 (or 34981 counting only the distinct ones).

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

The square root of 1402442120 is about 37449.1938498014. The cubic root of 1402442120 is about 1119.3390339033.

Adding to 1402442120 its reverse (212442041), we get a palindrome (1614884161).

The spelling of 1402442120 in words is "one billion, four hundred two million, four hundred forty-two thousand, one hundred twenty".