1491374352 has 40 divisors (see below), whose sum is σ = 4149081664. Its totient is φ = 458884224.

The previous prime is 1491374327. The next prime is 1491374359. The reversal of 1491374352 is 2534731941.

It is a super-3 number, since 3×1491374352³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1491374352.

It is not an unprimeable number, because it can be changed into a prime (1491374359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194388 + ... + 1195635.

Almost surely, 2^1491374352 is an apocalyptic number.

1491374352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1491374352 is an abundant number, since it is smaller than the sum of its proper divisors (2657707312).

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

1491374352 is a wasteful number, since it uses less digits than its factorization.

1491374352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390047 (or 2390041 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 1491374352 is about 38618.3162760885. The cubic root of 1491374352 is about 1142.5158227279.

The spelling of 1491374352 in words is "one billion, four hundred ninety-one million, three hundred seventy-four thousand, three hundred fifty-two".