1400222154 has 32 divisors (see below), whose sum is σ = 2892105216. Its totient is φ = 451604160.

The previous prime is 1400222113. The next prime is 1400222177. The reversal of 1400222154 is 4512220041.

It is a self number, because there is not a number n which added to its sum of digits gives 1400222154.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22759 + ... + 57605.

It is an arithmetic number, because the mean of its divisors is an integer number (90378288).

Almost surely, 2^1400222154 is an apocalyptic number.

1400222154 is an abundant number, since it is smaller than the sum of its proper divisors (1491883062).

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

1400222154 is a wasteful number, since it uses less digits than its factorization.

1400222154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35070.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1400222154 is about 37419.5424076778. The cubic root of 1400222154 is about 1118.7481106717.

Adding to 1400222154 its reverse (4512220041), we get a palindrome (5912442195).

The spelling of 1400222154 in words is "one billion, four hundred million, two hundred twenty-two thousand, one hundred fifty-four".