1402445331 has 24 divisors (see below), whose sum is σ = 2316188160. Its totient is φ = 801037296.

The previous prime is 1402445329. The next prime is 1402445351. The reversal of 1402445331 is 1335442041.

It is a happy number.

It is not a de Polignac number, because 1402445331 - 2¹ = 1402445329 is a prime.

It is a super-2 number, since 2×1402445331² = 3933705812887399122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1402445295 and 1402445304.

It is not an unprimeable number, because it can be changed into a prime (1402445351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207280 + ... + 213938.

It is an arithmetic number, because the mean of its divisors is an integer number (96507840).

Almost surely, 2^1402445331 is an apocalyptic number.

1402445331 is a deficient number, since it is larger than the sum of its proper divisors (913742829).

1402445331 is a wasteful number, since it uses less digits than its factorization.

1402445331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10015 (or 10012 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1402445331 is about 37449.2367211937. The cubic root of 1402445331 is about 1119.3398881738.

Adding to 1402445331 its reverse (1335442041), we get a palindrome (2737887372).

The spelling of 1402445331 in words is "one billion, four hundred two million, four hundred forty-five thousand, three hundred thirty-one".