1400422344 has 64 divisors (see below), whose sum is σ = 3661424640. Its totient is φ = 445515840.

The previous prime is 1400422327. The next prime is 1400422349. The reversal of 1400422344 is 4432240041.

It is a happy number.

It is a super-2 number, since 2×1400422344² = 3922365483148908672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1400422349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268449 + ... + 273615.

It is an arithmetic number, because the mean of its divisors is an integer number (57209760).

Almost surely, 2^1400422344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400422344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1830712320).

1400422344 is an abundant number, since it is smaller than the sum of its proper divisors (2261002296).

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

1400422344 is a wasteful number, since it uses less digits than its factorization.

1400422344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5690 (or 5686 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1400422344 is about 37422.2172512533. The cubic root of 1400422344 is about 1118.8014240004.

Adding to 1400422344 its reverse (4432240041), we get a palindrome (5832662385).

The spelling of 1400422344 in words is "one billion, four hundred million, four hundred twenty-two thousand, three hundred forty-four".