1469946981 has 8 divisors (see below), whose sum is σ = 1960187680. Its totient is φ = 979835472.

The previous prime is 1469946979. The next prime is 1469947033. The reversal of 1469946981 is 1896499641.

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

It is not a de Polignac number, because 1469946981 - 2¹ = 1469946979 is a prime.

It is a super-2 number, since 2×1469946981² = 4321488253902028722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1469946901) 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, 1570 + ... + 54243.

It is an arithmetic number, because the mean of its divisors is an integer number (245023460).

Almost surely, 2^1469946981 is an apocalyptic number.

It is an amenable number.

1469946981 is a deficient number, since it is larger than the sum of its proper divisors (490240699).

1469946981 is an equidigital number, since it uses as much as digits as its factorization.

1469946981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64595.

The product of its digits is 3359232, while the sum is 57.

The square root of 1469946981 is about 38339.8875976443. The cubic root of 1469946981 is about 1137.0176950747.

The spelling of 1469946981 in words is "one billion, four hundred sixty-nine million, nine hundred forty-six thousand, nine hundred eighty-one".