1336149640 has 64 divisors (see below), whose sum is σ = 3505968000. Its totient is φ = 458103744.

The previous prime is 1336149571. The next prime is 1336149677. The reversal of 1336149640 is 469416331.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1336149640.

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, 34974 + ... + 62413.

It is an arithmetic number, because the mean of its divisors is an integer number (54780750).

Almost surely, 2^1336149640 is an apocalyptic number.

1336149640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1336149640 is an abundant number, since it is smaller than the sum of its proper divisors (2169818360).

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

1336149640 is an equidigital number, since it uses as much as digits as its factorization.

1336149640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97419 (or 97401 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1336149640 is about 36553.3806918047. The cubic root of 1336149640 is about 1101.4168079664.

It can be divided in two parts, 13361 and 49640, that added together give a square (63001 = 251²).

The spelling of 1336149640 in words is "one billion, three hundred thirty-six million, one hundred forty-nine thousand, six hundred forty".