1355782974 has 32 divisors (see below), whose sum is σ = 3337313280. Its totient is φ = 357568992.

The previous prime is 1355782969. The next prime is 1355782999. The reversal of 1355782974 is 4792875531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1241014 + ... + 1242105.

It is an arithmetic number, because the mean of its divisors is an integer number (104291040).

Almost surely, 2^1355782974 is an apocalyptic number.

1355782974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1355782974 is an abundant number, since it is smaller than the sum of its proper divisors (1981530306).

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

1355782974 is a wasteful number, since it uses less digits than its factorization.

1355782974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483144.

The product of its digits is 2116800, while the sum is 51.

The square root of 1355782974 is about 36820.9583525470. The cubic root of 1355782974 is about 1106.7853243885.

The spelling of 1355782974 in words is "one billion, three hundred fifty-five million, seven hundred eighty-two thousand, nine hundred seventy-four".