1394494400 has 84 divisors (see below), whose sum is σ = 3695331192. Its totient is φ = 514882560.

The previous prime is 1394494397. The next prime is 1394494403. The reversal of 1394494400 is 44944931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1394494397) and next prime (1394494403).

It is a super-2 number, since 2×1394494400² = 3889229263262720000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394494403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12722 + ... + 54321.

It is an arithmetic number, because the mean of its divisors is an integer number (43992038).

Almost surely, 2^1394494400 is an apocalyptic number.

1394494400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1394494400 is an abundant number, since it is smaller than the sum of its proper divisors (2300836792).

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

1394494400 is a wasteful number, since it uses less digits than its factorization.

1394494400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67078 (or 67063 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 1394494400 is about 37342.9297190245. The cubic root of 1394494400 is about 1117.2205741851.

The spelling of 1394494400 in words is "one billion, three hundred ninety-four million, four hundred ninety-four thousand, four hundred".