1374655506 has 128 divisors (see below), whose sum is σ = 3428352000. Its totient is φ = 366488640.

The previous prime is 1374655489. The next prime is 1374655511. The reversal of 1374655506 is 6055564731.

It is a super-2 number, since 2×1374655506² = 3779355520352232072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1849771 + ... + 1850513.

It is an arithmetic number, because the mean of its divisors is an integer number (26784000).

Almost surely, 2^1374655506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1374655506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714176000).

1374655506 is an abundant number, since it is smaller than the sum of its proper divisors (2053696494).

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

1374655506 is a wasteful number, since it uses less digits than its factorization.

1374655506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 1374655506 is about 37076.3469883429. The cubic root of 1374655506 is about 1111.8971711283.

The spelling of 1374655506 in words is "one billion, three hundred seventy-four million, six hundred fifty-five thousand, five hundred six".