1492428381 has 8 divisors (see below), whose sum is σ = 2054095104. Its totient is φ = 962856960.

The previous prime is 1492428367. The next prime is 1492428389. The reversal of 1492428381 is 1838242941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1492428381 - 2¹⁸ = 1492166237 is a prime.

It is a super-2 number, since 2×1492428381² = 4454684944828562322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492428389) 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 7 ways as a sum of consecutive naturals, for example, 8023716 + ... + 8023901.

It is an arithmetic number, because the mean of its divisors is an integer number (256761888).

Almost surely, 2^1492428381 is an apocalyptic number.

It is an amenable number.

1492428381 is a deficient number, since it is larger than the sum of its proper divisors (561666723).

1492428381 is a wasteful number, since it uses less digits than its factorization.

1492428381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16047651.

The product of its digits is 110592, while the sum is 42.

The square root of 1492428381 is about 38631.9606155318. The cubic root of 1492428381 is about 1142.7849170747.

The spelling of 1492428381 in words is "one billion, four hundred ninety-two million, four hundred twenty-eight thousand, three hundred eighty-one".