1400422400 has 180 divisors, whose sum is σ = 3754311792. Its totient is φ = 515112960.

The previous prime is 1400422393. The next prime is 1400422411. The reversal of 1400422400 is 42240041.

It is a super-2 number, since 2×1400422400² = 3922365796843520000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5324669 + ... + 5324931.

Almost surely, 2^1400422400 is an apocalyptic number.

1400422400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400422400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1877155896).

1400422400 is an abundant number, since it is smaller than the sum of its proper divisors (2353889392).

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

1400422400 is an equidigital number, since it uses as much as digits as its factorization.

1400422400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1400422400 is about 37422.2179994719. The cubic root of 1400422400 is about 1118.8014389132.

Adding to 1400422400 its reverse (42240041), we get a palindrome (1442662441).

The spelling of 1400422400 in words is "one billion, four hundred million, four hundred twenty-two thousand, four hundred".