1394808240400 has 45 divisors (see below), whose sum is σ = 3351083546533. Its totient is φ = 557913848000.

The previous prime is 1394808240359. The next prime is 1394808240409. The reversal of 1394808240400 is 40428084931.

The square root of 1394808240400 is 1181020.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 502130966544 + 892677273856 = 708612^2 + 944816^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1394808240409) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23590875 + ... + 23649925.

Almost surely, 2^{1394808240400} is an apocalyptic number.

1394808240400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1394808240400 is the 1181020-th square number.

It is an amenable number.

1394808240400 is an abundant number, since it is smaller than the sum of its proper divisors (1956275306133).

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

1394808240400 is an frugal number, since it uses more digits than its factorization.

1394808240400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118120 (or 59058 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 1394808240400 in words is "one trillion, three hundred ninety-four billion, eight hundred eight million, two hundred forty thousand, four hundred".