1401401380 has 24 divisors (see below), whose sum is σ = 2958359040. Its totient is φ = 557624160.

The previous prime is 1401401327. The next prime is 1401401399. The reversal of 1401401380 is 831041041.

It is an unprimeable number.

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, 179610 + ... + 187249.

It is an arithmetic number, because the mean of its divisors is an integer number (123264960).

Almost surely, 2^1401401380 is an apocalyptic number.

1401401380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401401380 is an abundant number, since it is smaller than the sum of its proper divisors (1556957660).

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

1401401380 is a wasteful number, since it uses less digits than its factorization.

1401401380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367059 (or 367057 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1401401380 is about 37435.2959117462. The cubic root of 1401401380 is about 1119.0620814899.

The spelling of 1401401380 in words is "one billion, four hundred one million, four hundred one thousand, three hundred eighty".