1400421929 has 2 divisors, whose sum is σ = 1400421930. Its totient is φ = 1400421928.

The previous prime is 1400421889. The next prime is 1400421941. The reversal of 1400421929 is 9291240041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 895206400 + 505215529 = 29920^2 + 22477^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400421929 is a prime.

It is a super-2 number, since 2×1400421929² = 3922363158448162082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400421895 and 1400421904.

It is not a weakly prime, because it can be changed into another prime (1400421959) by changing a digit.

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 as a sum of consecutive naturals, namely, 700210964 + 700210965.

It is an arithmetic number, because the mean of its divisors is an integer number (700210965).

Almost surely, 2^1400421929 is an apocalyptic number.

It is an amenable number.

1400421929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400421929 is an equidigital number, since it uses as much as digits as its factorization.

1400421929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1400421929 is about 37422.2117064184. The cubic root of 1400421929 is about 1118.8013134855.

The spelling of 1400421929 in words is "one billion, four hundred million, four hundred twenty-one thousand, nine hundred twenty-nine".