1336555540 has 48 divisors (see below), whose sum is σ = 2851167312. Its totient is φ = 526196736.

The previous prime is 1336555529. The next prime is 1336555559. The reversal of 1336555540 is 455556331.

It can be written as a sum of positive squares in 8 ways, for example, as 3283344 + 1333272196 = 1812^2 + 36514^2 .

It is a super-4 number, since 4×1336555540⁴ (a number of 38 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1336555540.

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, 1367532 + ... + 1368508.

It is an arithmetic number, because the mean of its divisors is an integer number (59399319).

Almost surely, 2^1336555540 is an apocalyptic number.

1336555540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1336555540 is an abundant number, since it is smaller than the sum of its proper divisors (1514611772).

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

1336555540 is a wasteful number, since it uses less digits than its factorization.

1336555540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 1994 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 37.

The square root of 1336555540 is about 36558.9324242380. The cubic root of 1336555540 is about 1101.5283273667.

The spelling of 1336555540 in words is "one billion, three hundred thirty-six million, five hundred fifty-five thousand, five hundred forty".