1401364660 has 24 divisors (see below), whose sum is σ = 2943876096. Its totient is φ = 560353440.

The previous prime is 1401364649. The next prime is 1401364661. The reversal of 1401364660 is 664631041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401364661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57489 + ... + 78151.

It is an arithmetic number, because the mean of its divisors is an integer number (122661504).

Almost surely, 2^1401364660 is an apocalyptic number.

1401364660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401364660 is an abundant number, since it is smaller than the sum of its proper divisors (1542511436).

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

1401364660 is a wasteful number, since it uses less digits than its factorization.

1401364660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24063 (or 24061 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1401364660 is about 37434.8054622967. The cubic root of 1401364660 is about 1119.0523073883.

The spelling of 1401364660 in words is "one billion, four hundred one million, three hundred sixty-four thousand, six hundred sixty".