1364646540 has 24 divisors (see below), whose sum is σ = 3821010480. Its totient is φ = 363905728.

The previous prime is 1364646487. The next prime is 1364646631. The reversal of 1364646540 is 456464631.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11371995 + ... + 11372114.

It is an arithmetic number, because the mean of its divisors is an integer number (159208770).

Almost surely, 2^1364646540 is an apocalyptic number.

1364646540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1364646540 is an abundant number, since it is smaller than the sum of its proper divisors (2456363940).

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

1364646540 is a wasteful number, since it uses less digits than its factorization.

1364646540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22744121 (or 22744119 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 1364646540 is about 36941.1226142358. The cubic root of 1364646540 is about 1109.1919937388.

It can be divided in two parts, 136 and 4646540, that added together give a triangular number (4646676 = T₃₀₄₈).

The spelling of 1364646540 in words is "one billion, three hundred sixty-four million, six hundred forty-six thousand, five hundred forty".