1400894400 has 84 divisors (see below), whose sum is σ = 4596116792. Its totient is φ = 373570560.

The previous prime is 1400894399. The next prime is 1400894449. The reversal of 1400894400 is 44980041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141127 + ... + 150726.

Almost surely, 2^1400894400 is an apocalyptic number.

1400894400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400894400 is an abundant number, since it is smaller than the sum of its proper divisors (3195222392).

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

1400894400 is a wasteful number, since it uses less digits than its factorization.

1400894400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291878 (or 291863 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1400894400 is about 37428.5238821944. The cubic root of 1400894400 is about 1118.9271188420.

The spelling of 1400894400 in words is "one billion, four hundred million, eight hundred ninety-four thousand, four hundred".